week 1a - st benedict's catholic high school · week 1a materials exercise ash and plywood...
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Week 1AMaterials ExerciseAsh and Plywood
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form Include sketches in your answer
Describe two ways the material can be modified
Week 1B
Materials Exercise
Low Carbon Steel
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Week 2A
Materials Exercise
Acrylic and Polyvinyl Chloride ndash PVC
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Week 2B
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
WEEK 3A
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Hazards in the Workshop1 What is a Hazard __________________________________________________
2 On the sheet below there are many Hazards your task is to see if you can identify all twenty Circle each hazard and give each a number from 1-20
3 Describe each hazard you have identified
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
WEEK 3B
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Week 1B
Materials Exercise
Low Carbon Steel
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Week 2A
Materials Exercise
Acrylic and Polyvinyl Chloride ndash PVC
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Week 2B
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
WEEK 3A
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Hazards in the Workshop1 What is a Hazard __________________________________________________
2 On the sheet below there are many Hazards your task is to see if you can identify all twenty Circle each hazard and give each a number from 1-20
3 Describe each hazard you have identified
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
WEEK 3B
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Week 2A
Materials Exercise
Acrylic and Polyvinyl Chloride ndash PVC
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Week 2B
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
WEEK 3A
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Hazards in the Workshop1 What is a Hazard __________________________________________________
2 On the sheet below there are many Hazards your task is to see if you can identify all twenty Circle each hazard and give each a number from 1-20
3 Describe each hazard you have identified
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
WEEK 3B
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Week 2B
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
WEEK 3A
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Hazards in the Workshop1 What is a Hazard __________________________________________________
2 On the sheet below there are many Hazards your task is to see if you can identify all twenty Circle each hazard and give each a number from 1-20
3 Describe each hazard you have identified
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
WEEK 3B
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
WEEK 3A
Materials Exercise
Cotton and Wool Yarn
Name one surface finish or treatment that can be applied to the material to enhance the functional or mechanical properties
Use notes andor sketches to explain how the surface finish or treatment can be changed to improve or enhance its properties
Describe two ways that materials can be shaped or formed
Use notes andor sketches to explain how it takes place
State one raw primary source material of your chosen material
Give one stock form in which the material is likely to be available
Describe the manufacturing processes(s) used to turn the raw primary source material into stock form
Include sketches in your answer
Describe two ways the material can be modified
Hazards in the Workshop1 What is a Hazard __________________________________________________
2 On the sheet below there are many Hazards your task is to see if you can identify all twenty Circle each hazard and give each a number from 1-20
3 Describe each hazard you have identified
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
WEEK 3B
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Hazards in the Workshop1 What is a Hazard __________________________________________________
2 On the sheet below there are many Hazards your task is to see if you can identify all twenty Circle each hazard and give each a number from 1-20
3 Describe each hazard you have identified
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
WEEK 3B
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
METALS
Metals are can be classified into two types of materials-
a Ferrous Metals
b Non-Ferrous Metals
Ferrous metals will corrode (rust) therefore need to be protected by applying paint grease oil galvanizing zinc plating to its surface
Non-Ferrous metals do not corrode (rust) as easily as ferrous metals and are usually more expensive Most non-ferrous metals are usually mixed with other metals to make ALLOYS
QuestionIn the table drawn below categorize the following metals into ferrous and non-ferrous metals
Aluminium CopperIron SteelBrass Cast ironTin leadFerrous Metals Non-Ferrous Metals
Stainless Steel Tool steel
Week 4A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Metalsquestion and activity below and complete each one
1 WRITE DOWN THE ADVANTAGES AND DISADVANTAGES OF USING METALS
2 When referring to metals what does FERROUS mean
3 What does Non-Ferrous mean
4 Give an example of a FERROUS METAL
5 Give an example of a NON-FERROUS METAL
6 What is a PURE METAL
7 What is an ALLOY
8 What benefits do ALLOYS offer
9 Name 8 different forms that metal can be obtained10 What impact does the production of METAL have on the
Environment11 What does Metal Fabrication mean12 What are the two main types of Fabrication13 In your own words describe the main difference between
Soldering and Brazing14 Name the two main types of Non Permanent fabrication
Week 4B
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Product Picture Thermoplastic or Thermosetting
Reason
Pan Handle Thermoset Because it becomes very hot and it would melt if it was made from a thermoplastic
Plastic Bucket Thermoplastic Because it would cost too much to make it out of thermosetting plastic and there is no need
Ruler
Light Switch
Washing up Liquid Bottle
PLASTICS- What are theyThere are two main types of plastic- Thermoplastic and Thermosetting plastic
THERMOPLASTICS- Can be heated up and formed into shape time and again
THERMOSETTING PLASTIC- After being formed for the first time using heat they CANNOT
be formed again which makes them heat proof
Below is a table listing many types of plastic products- Draw a picture of each one and try and
guess if it is a thermoplastic or thermosetting plastic Give reasons where you can
Product Picture Thermoplastic or Thermosetting
Reason
Drain Pipe
Kettle
Electric Plug
Plastic Cup
Pen
Week 5
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
PLASTICS
Plastics are man made with a structure made up from long chains of
organic molecules Plastics are usually made from crude oil and are divided
into two distinct categories-
1 Thermoplastic- By far the most common it easily moulded into
a variety of shapes by the application of heat
(vacuum forming) further application of heat
makes the product return to its original form
This is also known as plastic memory (recyclable
plastics)
Most common forms are-
Polystyrene Polythene
Acrylic (Perspex) PVC
2 Thermosets- This type of plastic can only be moulded once
after that further heating will destroy the
product
Most Common forms are-
Bakelite (Electrical fittings) Urea Formaldehyde
Polyester Resin (Used in fibre glass)
Question
List five items that could be manufactured from Thermoplastic
plastic
List five items that could be manufactured from Thermoset plastic
Week 6
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
MOVING ON (2) cams and other mechanisms
answer the following questions
1 What is the main difference between a ROTARY CAM and a LINEAR CAM
2 What is a follower and what does it do
3 Name 3 examples of where a ROTARY cam is used
4 Explain using drawings how a CRANK works
5 Give 3 examples of where CRANKS are used
6 Explain what leverage is
7 If a CRANK has a long distance between the axle and the handle does it
have good or
leverage
8 What is a CRANKSHAFT Give an example of where it is used
9 Where in real life can you find a Crank and Slider
10 The CRANK and SLIDER turnshelliphelliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion into
helliphelliphelliphelliphelliphelliphelliphelliphelliphellip motion
11 Look at the example of a CRANK and SLIDER There are two main types of
motion
Using sketches and notes explain how you could add another mechanism to the
Crank which would give a reciprocating motion
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A
Woven fabrics
Woven fabrics are made up of a weft - the yarn going across the width of the fabric ndash
and a warp - the yarn going down the length of the loom
The side of the fabric where the wefts are double back to form a non-fraying edge is called theselvedge
There are two types of woven fabrics
Plain-weave fabric In plain-weave the warp and weft are aligned so that they form a simple
criss-cross patternIt is strong and hardwearing It is used for fashion and furnishing fabrics
2 Twill-weave In twill-weave the crossings of weft and warp are offset to give a
diagonal pattern on the fabric surface Twill weave is strong and drapes well It is used for jeans jackets and curtains
WEEK 7A