Question

Which statement is not true for a simple machine?

• A. It makes work easy
• B. It multiplies force
• C. It saves energy
• D. It saves time

Answer 1

The correct option is C

It saves energy

The explanation for correct option:

1. A simple machine is a physical device that changes the magnitude or direction of a force.
2. It should be noted that these machines do nothing to change the amount of energy used.
3. Simple machines do not save energy.

The explanation for incorrect option:

Simple machine:

A simple machine is a device that makes work easier, and faster as a result saves time.

It does so in the following ways:

1. Applying a force in a convenient direction.
2. Multiplying force.
3. Applying a force at a convenient point.

Hence, Option (C) is the correct option.