1. Which class of lever is used in a fishing rod?

first class lever
second class lever
third class lever
fourth class lever

2. Which class of lever is used in a see-saw?

first class lever
second class lever
third class lever
fourth class lever

3. Which class of lever is useful for opening containers?

first class lever
second class lever
third class lever
fourth class lever

4. Which class of lever is useful for throwing things?

first class lever
second class lever
third class lever
fourth class lever

5. Which of the following is a part of a lever?

incline
spring
fulcrum
wheel

6. Which of the following things is not a part of the lever?

load
circuit
fulcrum
force