levers a level pe Flashcards
1
Q
does a 1st class lever system provide a mechanical disadvantage or advantage or both
A
both
2
Q
Does a 2nd class lever system provide a mechanical disadvantage or advantage or both
A
advantage
3
Q
Does a third class lever system provide a mechanical advantage or disadvantage or both
A
disadvantage
4
Q
Does a 1st class lever amplify movement or force
A
it amplifies force
5
Q
Does a 2nd class lever amplify movement or force
A
it amplifies force
6
Q
Does a 3rd class lever system amplify movement or force
A
it amplifies movement, it can never amplify force
7
Q
what happens when the effort arm is longer than the load arm
A
EA>LA= amplify force
8
Q
what happens when the load arm is longer than the effort arm
A
LA>EA= amplify force
