Levers

Question 1

Three components to in levers

Answer 1

Fulcrum: the fixed point or pivot

Load: point where the weight/resistance is coming from

Effort: point where the force/effort is applied

Question 2

First Class Lever

F

Answer 2

The load is on the right, the fulcrum on the middle and the effort on the left.

Heading the ball in football is an sporting example

Question 3

Second Class Lever

L

Answer 3

Effort on the left, the load on the middle and the fulcrum on the right.

High jump is an sporting example

Question 4

Third Class Lever

E

Answer 4

The fulcrum is on the left, the effort on the middle and the load on the right.

Bicep curl is an sporting example

Question 5

How to recognise the classes of levers?

Answer 5

In the First Class the fulcrum is in the middle so the first class is (F) meaning 1st

In the Second Class the load is in the middle so the second class is (L) meaning 2nd

In the Third Class the effort is in the middle so the third class is (E) meaning 3rd