2023 PS Chapter 4 Test Review

Energy is measured in joules.

• True
• False

Energy is the ability to cause change.

• True
• False

When you ride a playground swing, your potential energy is greatest at the highest point.

• True
• False

As mass decreases, kinetic energy increases.

• True
• False

The sum of potential and kinetic energy in a system is called mechanical energy.

• True
• False

As an object falls its potential energy is lost to the air around it.

• True
• False

In order for work to be done on a object, the object must move.

• True
• False

Gravitational potential energy is proportional only to the height above a reference level.

• True
• False

Energy cannot be changed from one variety to another.

• True
• False

A stretched bow and a compressed rubber ball both possess elastic potential energy.

• True
• False