Question

_____ is a simple machine that uses grooved wheels and a rope to raise, lower or move a load?
A) Lever B) Inclined plane C) Wheel and axle D) Pulley

Answer 1

D) Pulley

Pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load...

Answer 2

Answer:

Pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.

Explanation:

• A simple machine is made up of a number or few transferring parts and they make our work easier. For example, wedge, lever etc.
• A pulley consists of a rope running over a wheel. When the wheel rotates, the rope can move in both directions.
• By attaching a hook to the rope, the wheel’s rotation may be used to elevate or lower objects, making work easier. It is a type of a simple machine.
• So, option D is correct: Pulley