Energy

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position or state. For example, a stretched spring or a raised object has potential energy.

Front

What happens to potential energy when an object falls?

Back

When an object falls, its potential energy is converted into kinetic energy.

Front

What is a source of energy for nonliving things?

Back

Gasoline is a source of energy for nonliving things, such as cars and machines.

Front

How can you increase the potential energy of an object?

Back

You can increase the potential energy of an object by raising it to a higher position or by compressing or stretching it, like tightening a spring.

Front

True or False: Energy makes everything happen in the universe.

Back

True.

Front

True or False: All living things need energy to move, grow, and change.

Back

False. All living things need energy to move, grow, and change.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in a substance.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food and fuel.