#1unit d the amount by which a machine can multiply a force
TRANSCRIPT
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#1 UNIT D
The amount by which a machine can multiply a force.
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#1 UNIT D
The amount by which a machine can multiply a force.
MECHANICAL ADVANTAGE
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#2 UNIT D
A device that helps us do work.
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#2 UNIT D
A device that helps us do work.
MACHINE
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#3 UNIT D
A rigid bar or plank that can rotate around a fixed point.
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#3 UNIT D
A rigid bar or plank that can rotate around a fixed point.
LEVER
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#4 UNIT D
In this class of lever the EFFORT is in the middle.
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#4 UNIT D
In this class of lever the EFFORT is in the middle.
THIRD
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#5 UNIT D
Is shaped like an inclined plane but it is used for a different purpose.
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#5 UNIT D
Is shaped like an inclined plane but it is used for a different purpose.
WEDGE
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#6 UNIT D
One part of a system.
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#6 UNIT D
One part of a system.
SUBSYSTEM
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#7 UNIT D
A steering wheel in a car is an example of this type of machine.
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#7 UNIT D
A steering wheel in a car is an example of this type of machine.
WHEEL & AXLE
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#8 UNIT D
A group of parts that work together to perform a function.
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#8 UNIT D
A group of parts that work together to perform a function.
SYSTEM
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#9 UNIT D
The force applied to the machine.
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#9 UNIT D
The force applied to the machine.
INPUT FORCE
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#10 UNIT D
The force the machine applies to the object.
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#10 UNIT D
The force the machine applies to the object.
OUTPUT FORCE
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#11 UNIT D
A force that opposes motion.
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#11 UNIT D
A force that opposes motion.
FRICTION
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#12 UNIT D
A measurement of how well a machine or device uses energy.
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#12 UNIT D
A measurement of how well a machine or device uses energy.
EFFICIENCY
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#13 UNIT D
The gear the force is applied to.
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#13 UNIT D
The gear the force is applied to.
DRIVING GEAR
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#14 UNIT D
Is a cylinder with a groove cut in a spiral on the outside.
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#14 UNIT D
Is a cylinder with a groove cut in a spiral on the outside.
SCREW
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#15 UNIT D
The formula for mechanical advantage is;
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#15 UNIT D
The formula for mechanical advantage is;
MA=OUTPUT FORCE/INPUT FORCE
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#16 UNIT D
The formula for speed ratio is;
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#16 UNIT D
The formula for speed ratio is;
SR=INPUT D / OUTPUT D
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#17 UNIT D
The amount of work depends on two things;
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#17 UNIT D
The amount of work depends on two things;
FORCE EXERTED &DISTANCE MOVED
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#18 UNIT D
A measure of the amount of force applied to a given area.
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#18 UNIT D
A measure of the amount of force applied to a given area.
PRESSURE
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#19 UNIT D
Pressure applied to an enclosed fluid is transmitted equally in all directions is known as ________ law.
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#19 UNIT D
Pressure applied to an enclosed fluid is transmitted equally in all directions is known as ________ law.
PASCAL’S
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#20 UNIT D
A tool or device made up of one basic machine.
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#20 UNIT D
A tool or device made up of one basic machine.
SIMPLE MACHINE
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#21 UNIT D
What is the formula for work?
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#21 UNIT D
What is the formula for work?
W = F x D
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#22 UNIT D
If a small syringe with a diameter of 2 cm has a force applied to it of 20 N, and the large syringe on the other side has a diameter of 10 cm, how many Newtons of force will be present at the large syringe.
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#22 UNIT D
If a small syringe with a diameter of 2 cm has a force applied to it of 20 N, and the large syringe on the other side has a diameter of 10 cm, how many Newtons of force will be present at the large syringe.
100N
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#23 UNIT D
If a syringe system has an MA of 5 and the small syringe moves 15cm down, how for up will the large syringe move?
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#23 UNIT D
If a syringe system has an MA of 5 and the small syringe moves 15cm down, how for up will the large syringe move?
3 cm
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#24 UNIT D
The purpose of task.
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#24 UNIT D
The purpose of task.
FUNCTION
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#25 UNIT D
A one-speed bike and a 21 speed bike are both __________ in performing the task.
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#25 UNIT D
A one-speed bike and a 21 speed bike are both __________ in performing the task.
EFFECTIVE
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#26 UNIT D
A 21-speed bike is more _______ than a one-speed bike in performing the task.
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#26 UNIT D
A 21-speed bike is more _______ than a one-speed bike in performing the task.
EFFICIENT
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#27 UNIT D
The physical form of the device that makes it useable.
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#27 UNIT D
The physical form of the device that makes it useable.
DESIGN
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#28 UNIT D
When you buy a more fuel efficient car because you do not want to pollute as much you are considering the…
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#28 UNIT D
When you buy a more fuel efficient car because you do not want to pollute as much you are considering the…
ENVIRONMENT
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#29 UNIT D
What is the MA of a syringe system where the small syringe is 5cm in diameter and the large syringe is 30 cm in diameter?
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#29 UNIT D
What is the MA of a syringe system where the small syringe is 5cm in diameter and the large syringe is 30 cm in diameter?
MA = 6
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#30 UNIT D
In a block & tackle pulley system, what would be the MA if there are 4 pulleys.
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#30 UNIT D
In a block & tackle pulley system, what would be the MA if there are 4 pulleys.
4
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SCIENCE 8
UNIT DMECHANICAL SYSTEMS
ROCK & ROLL REVIEW