Energy Transformations

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

True or False: Energy can be created or destroyed.

Back

False. Energy cannot be created or destroyed; it can only be transformed from one form to another.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that the total amount of energy in a closed system remains constant; energy can change forms but cannot be created or destroyed.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like atoms and molecules.

Front

Give an example of radiant energy.

Back

The sun, visible light, and x-rays are examples of radiant energy.

Front

What happens to energy during a chemical reaction?

Back

During a chemical reaction, energy is transformed from one form to another, but the total amount of energy remains the same.

Front

What type of energy transformation occurs in a flashlight?

Back

In a flashlight, the energy transformation is chemical → electrical → light.

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 an object.

Front

What is an example of mechanical energy?

Back

A moving car or a spinning windmill are examples of mechanical energy.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.