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Science Lever and Pulley/ Pulley
Created by ftbrady
- the fixed point which a lever turns on is called
- other than multiplying a force, what else can levers do
- how would you determine what class a lever is
- what happens to the force needed to move an object as you increase the length of effort arm
- what would happen to the force required if you decreased the length of the effort arm?
- ALL LEVERS make work easier
- pulleys can_____ a force or change is ______
- false; the 3rd class lever does not make work easier; They give you increased speed
- change the direction of a force
- the force needed would increase
- force needed would decrease as you increase the effort arm
- look in the middle and be FRE; fulcrum in middle=class 1, resistance in middle = 2; effort in the middle = class 3
- direction
- fulcrum
Science Lever and Pulley/ Pulley (Answer Key)
Created by ftbrady
- the fixed point which a lever turns on is called
- other than multiplying a force, what else can levers do
- how would you determine what class a lever is
- what happens to the force needed to move an object as you increase the length of effort arm
- what would happen to the force required if you decreased the length of the effort arm?
- ALL LEVERS make work easier
- pulleys can_____ a force or change is ______
- false; the 3rd class lever does not make work easier; They give you increased speed
- change the direction of a force
- the force needed would increase
- force needed would decrease as you increase the effort arm
- look in the middle and be FRE; fulcrum in middle=class 1, resistance in middle = 2; effort in the middle = class 3
- direction
- fulcrum
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