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Flashcards in levers Deck (12):
1

what is a lever ?

is a rigid bar that moves around an axis to create movement

2

what is the fulcrum ?

the fixed point at which a lever turns or is supported

3

what is the load ?

the weight or resistance that the lever must move

4

what is the effort ?

the force required to move the load.

5

what is the load arm ?

the distance from the load to the fulcrum

6

what is the effort arm ?

the distance from the effort to fulcrum

7

what is mechanical advantage ?

measures the efficiency of the lever
mechanical advantage = effort arm/ load arm

8

give an example of a first class lever ?

over head throw

9

give an example of a second class lever ?

doing a push up

10

give an example of third class lever ?

doing bicep curls

11

explain a third class levers mechanical advantage ?

low mechanical advantage

12

explain a second class levers mechanical advantage ?

high mechanical advantage