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Science Lever and Pulley/ Pulley
Created by ftbrady
Instructions:
-
the fixed point which a lever turns on is called
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other than multiplying a force, what else can levers do
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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
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pulleys can_____ a force or change is ______
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false; the 3rd class lever does not make work easier; They give you increased speed
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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
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direction
-
fulcrum
Science Lever and Pulley/ Pulley
(Answer Key)
Created by ftbrady
Instructions:
-
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