A staircase is an example of a class $3$  lever.

Ramps are used in hospitals to transport patients on wheelchairs.

Gautam wants to help his father load some drums onto a truck. Which of the following objects would be the best choice to make his job easy? Choose the correct option.

Choose from the following:

($1$, $2$, $3$, $4$)

Our elbow is an example of a class _____ lever.

A straight rod that can move around a fixed point on it is known as a

A see-saw is an example of a

The small rod at the centre of a wheel is called a/an