we will describe and illustrate forces. i will draw pictures of forces in everyday life. 8/31/2015...
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We will describe and illustrate forces.
I will draw pictures of forces in everyday life.
8/31/2015
AgendaBell Ringer
Force PPT and Notes Assessment Questions
Ticket Out
Bell Ringer VocabularyCopy vocabulary and use 1 word in a
sentence
Motion: An object's change in position over time when compared to a reference point.
Direction: A course along which someone or something moves.
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Journal Setup
Week 2 Bell Ringer
Glue Here
Force Notes 11 12
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Force Force is a push or pull on an object
Forces always have a direction and an amount.
Gravity is the basic force in the universe that attracts all objects.
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Journal Setup
Force Pictures
Forces in Nature Pictures
13 14
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Forces in Nature: Emergence of Seedlings
Stem pushes through the seed shell and through the soil.
Draw the force of the stem.
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Forces in Nature: Turgor pressure
The force of water inside the cell pushing against the cell membrane & cell wall.
High Turgor pressure (well watered plants) keeps a plant rigid (standing up)
Low Turgor Pressure (low watered plants) cause plants to droop or wilt.
Draw a picture of the force of turgor pressure acting on the cells
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Forces in Nature: Geotropism
A plant’s reaction to gravity
Roots will grow in the soil.
Draw the force acting on the roots. Label it!
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Sort Cards Sort the pictures based on the force that is
used.
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Forces in Everyday Life Draw 2 pictures of how you use forces in
everyday life
Include arrows showing the direction of the forces and the direction the object is moving.
How do you use forces in
everyday life?
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Ticket Out: Force Assessment Questions How are forces described?
Draw a pencil sitting on a desk. Label and describe the forces acting on the pencil.
If the pencil were to roll off the desk, label and describe the forces acting on the pencil.
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Ticket Out :Writing about Forces Describe a force?
What happens when a force is applied ?
Explain a time when you use a force.
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We will complete the measuring force activity.
I will write to explain how to measure a force. 9/1/2015
AgendaBell Ringer
How to use spring scale
Measuring Force Ticket Out
Bell Ringer
Circle the correct answer to the question. Write to
explain why the answer is correct, and why the other
answer is incorrect.
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How to use a Spring Scale A spring scale measure the amount of
force on an object in NETWONS.
How to use a Spring Scale Hold the spring scale in one hand. Be sure that
you hold it high enough so you can see the arrow and the numbers clearly.
Hook the object you are weighing onto the hook that hangs down from the scale.
Look at the number where the needle stops on the dial face, that is the weight in Newton's.
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Measuring Force Activity Measure the force pulling and lifting with the
spring scale for each object Book Wood Block Water Bottle
Draw a force diagram for each activity with arrows showing the direction of the force and direction the object is moving.
Answer Questions at the end
How do you use a spring
scale?
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Ticket Out Write to explain how to use a spring scale
and the purpose of it.
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We will evaluate situations of work.
I will draw pictures of work and not work.
AgendaBell Ringer Work Video
Work Foldable Ticket Out
9/3/2015
Bell Ringer
Draw a picture of a force in everyday life. Include arrows showing the
direction of the force and the direction the object
moves.
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Journal Setup
Circle Map 15 16
Work Pictures
Work Foldable
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What is work?
WORK
Share with your neighbor your examples of work?
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What is Work?Work Video
1.Watch the Work video
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What is work? In science, the word work has a different
meaning than you may be familiar with.
The scientific definition of work is: using a force to move an object a distance (when both the force and the motion of the object are in the same direction.)
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Work or Not? According to the
scientific definition, what is work and what is not? a teacher lecturing
to her class a mouse pushing a
piece of cheese with its nose across the floor
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Work or Not?Work or Not? According to the According to the
scientific definition, scientific definition, what is work and what is work and what is not?what is not? a teacher lecturing a teacher lecturing
to her classto her class Not Not a mouse pushing a a mouse pushing a
piece of cheese piece of cheese with its nose across with its nose across the floor the floor YesYes
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What’s work? A scientist delivers a speech to an
audience of his peers. A body builder lifts 350 pounds above his
head. A mother carries her baby from room to
room. A father pushes a baby in a carriage. A woman carries a 20 kg grocery bag to
her car?
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What’s work?What’s work? A scientist delivers a speech to an
audience of his peers. NoNo A body builder lifts 350 pounds above his
head. YesYes A mother carries her baby from room to
room. NoNo A father pushes a baby in a carriage. YesYes A woman carries a 20 km grocery bag to
her car? NoNo
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Draw Work and Not work Under your circle map draw 2 pictures
Write to explain how you know your picture is work and why your other picture is not work.
Work Not Work
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Ticket Out How do you know that scientific work has
been completed?
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AgendaBell Ringer
Calculating Work Notes
Calculating Work Rally CoachTicket Out
9/4/2015
We will calculate work.
I will use the work formula to calculate work.
Bell Ringer
Circle the correct answer to the question. Write to explain why the answer
you chose is correct, and why the other answers are
incorrect.
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Formula for work
Work = Force x Distance
The unit of force is newton's The unit of distance is meters The unit of work is newton-meters One newton-meter is equal to one joule So, the unit of work is a joule
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W=FD
Work = Force x Distance
Calculate: If a man pushes a concrete block 10 meters with a force of 20 N, how much work has he done?
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W=FDWork = Force x
Distance
Calculate: If a man pushes a concrete block 10 meters with a force of 20 N, how much work has he done? 200 joules200 joules(W = 20N x 10m)(W = 20N x 10m)
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Foldable Work Question A girl uses 10 N of force to carry a bag of apples 3
m from the kitchen counter to the table. How much work does she do?
30j
Explain how to use the work formula
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Calculating Work: Rally Coach
If you sit at the odd # at your table complete the odd problems (1,3,5,7,9)
If you sit at the even # at your table complete the even problems (2,4,6,8,10)
As your partner completes their problems you serve as the coach, guide them and make sure they are completing everything correctly. Explain and make corrections
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Ticket Out What unit is work measured in?
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Objective : I will show evidence of work by completing calculating work practice problems.
9/18/2014
AgendaBell Ringer
Calculating Work Problems
Ticket Out
Bell Ringer
Answer the questions in the Friday box on your bell
ringer.
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Calculating Work Read the passage.
Answer questions 16, 17 and 18
Complete independent work problems
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Work Problem Write a work calculation problem.
Make sure you are using an everyday situation of work.
Include an amount of force and the distance the object moves.
Rally Robin examples of
scientific work you could use to write
your work problem.
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Ticket Out Write to explain everything you know
about forces and work, using at least 30 words.