Levers
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8 Terms
Fulcrum
point about which the lever rotates
Effort
force applied by the user (muscle) of the lever system
Resistance (load)
weight to be moved by the lever system
1st lever
Effort arm is down
Fulcrum is in the middle
Load arm is down
Has a mechanical advantage and disadvantage
2nd class lever
Effort arm is up on the right side
Load arm is down in the middle
Fulcrum is on the left side
Has a mechanical advantage
3rd class lever
Fulcrum is on the right side
Effort arm is up in the middle
Load arm is down the left side
Has a mechanical disadvantage
What is a mechanical advantage and what does it amplifie
when effort arm is longer than the resistance arm
amplifies force
What is mechanical disadvantage and what does it amplifie
when effort arm is shorter than the resistance arm
it amplifies speed
Note 
Flashcards (103)