Soc 20: Levars

Question 1

FLE

Answer 1

Fulcrum Load Effort

Question 2

First class levar

Answer 2

The fulcrum is in the middle and either side the rest. An example is a tricep dip.

Question 3

Second class levar

Answer 3

The load is in the middle and the rest either side. An example is a calf raise.

Question 4

Third class levar

Answer 4

The effort is in the middle and the rest elsewhere. An example is a bicep curl.

Question 5

Mechanical advantage

Answer 5

When the effort is further in the end of a levar, making the work of what is being lifted easier. Therefore only the first and second class have this, the third class is a mechanical disadvantage.