levers Flashcards
1
Q
what is the MA if R=F
A
- MA=1
- no advantage
2
Q
what is MA if R < F
A
- MA < 1
- disadvantage
3
Q
what is MA if R > F
A
- MA > 1
- advantage
4
Q
what is the MA if FMA = RMA
A
- MA=1
- no advangtage
5
Q
what is the MA if FMA < RMA
A
- MA < 1
- disadvantage
6
Q
what the MA if FMA > RMA
A
- MA > 1
- advantage
7
Q
what is at an advangtage when MA > 1
A
force
8
Q
what is at and advantage when MA <1
A
speed and ROM
9
Q
1st, 2nd, 3rd class levers
A
1st: R-A-F or F-A-R
2nd: F-R-A
3rd: A-F-R
10
Q
what is the advantage of 2nd class levers
A
- force
- MA will always be >1
11
Q
what is the advantage of 3rd class levers
A
- speed and ROM
- MA will always be <1
12
Q
what motion do levers act in
A
rotational
13
Q
equation for MA
A
R/F OR FMA/RMA
