Question

A screwdriver is an example of of a/an

• A. pulley
• B. inclined plane
• C. lever
• D. wheel and axle

Answer 1

The correct option is D

wheel and axle

Explanation for the correct option

1. A screwdriver is an example of a wheel and axle.
2. A wheel and axle is just that, a wheel that turns on an axle.
3. An axle is a cylinder that keeps the wheel in place.
4. Example: door Knob, wagon, toy Car, screwdriver.

Explanation for the incorrect option(s)

1. A pulley is a rope wrapped around a wheel.
2. An inclined plane is a flat surface with one end propped up higher than the other, like a long piece of wood resting on a ledge.
3. A lever is a bar that pivots from a fixed point called a fulcrum.

Hence, option D is correct.