levers/mechanical advantage Flashcards
1
Q
What’s the acronym to remember?
A
1,2,3
F,L,E
2
Q
1st class lever
A
Load—-Fulcrum—-Effort
3
Q
2nd class lever
A
fulcrum—-Load—-Effort
4
Q
3rd class lever
A
Fulcrum—-Effort—-Load
5
Q
What is required for a lever?
A
Rigid bar, fulcrum, effort, load
6
Q
which lever has the mechanical advantage and disadvantage?
A
Advantage - 2nd
Disadvantage - 3rd
7
Q
why does the 2nd class lever have mechanical advantage?
A
because the effort arm is further from the fulcrum than the load
8
Q
why does the 3rd class lever have mechanical disadvantage?
A
The load arm is further from the fulcrum than the effort
9
Q
why does the 3rd class lever have mechanical disadvantage?
A
The load arm is further from the fulcrum than the effort
