Energy Unit Test 2025-2026

A ball is at rest until a paddle exerts force as shown below. What kind of energy is shown by the ball as it is moving away from the paddle?

• potential energy
• kinetic energy
• chemical energy

Which type of energy depends on the height of an object?

• gravitational potential energy
• chemical potential energy
• elastic potential energy

Identify the conversion of energy when you rub your hands together on a cold day.

• electrical energy converted to electromagnetic energy
• mechanical energy converted to thermal energy
• thermal energy converted to nuclear energy

The law of conservation of energy states that when one form of energy is converted into another,

• no energy is destroyed in the process.
• energy is created in the process.
• energy is destroyed in the process.

When generators are spun by turbines, they

• produce nuclear energy.
• produce electricity.
• store potential energy.

Kinetic energy increases as

• both mass and velocity decrease.
• both mass and velocity increase.

Moving water can be used to produce electricity because

• most forms of energy can be converted into other forms.
• energy cannot be converted into other forms of energy.

The ability to do work:

• Power
• Joules
• Energy
• A pencil

When fossil fuels are burned, their chemical potential energy is converted into

• thermal energy.
• electrical energy.
• mechanical energy.

The total energy of the particles in an object is

• thermal energy.
• electrical energy.
• chemical energy.