Uses of Energy

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy that measures and transfers heat.

Front

What is sound energy?

Back

Sound energy is the energy that results from vibrating matter. It is produced when objects vibrate and create sound waves.

Front

What type of energy does a flashlight convert electrical energy into?

Back

A flashlight converts electrical energy into light energy.

Front

What is light energy?

Back

Light energy is a form of energy that is visible to the human eye. It is produced by sources like the sun, light bulbs, and candles.

Front

What is an example of thermal energy in everyday life?

Back

An example of thermal energy is when you roast a marshmallow over a fire, as the heat cooks the marshmallow.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy associated with the motion and position of an object.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons. It powers devices like lights, computers, and appliances.

Front

What is an example of sound energy?

Back

An example of sound energy is the noise made by a musical instrument or a person talking.

Front

How does energy transfer occur?

Back

Energy transfer occurs when energy moves from one object or system to another, such as heat moving from a stove to a pot.

Front

What is the relationship between energy and work?

Back

Work is done when energy is transferred to an object, causing it to move. The amount of work done is equal to the energy transferred.