Energy Test Review

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as from chemical energy to electrical energy.

Front

What is chemical energy?

Back

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

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons, often used to power devices.

Front

What is light energy?

Back

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

Front

What is hydroelectric power?

Back

Hydroelectric power is electricity produced by the movement of water, typically from rivers or dams.

Front

What percentage of the world's energy comes from renewable sources?

Back

Approximately 26% of the world's energy comes from renewable sources.

Front

Which of the following is NOT a renewable energy source?

Back

Coal is not a renewable energy source; it is a fossil fuel.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as an object at a height.

Front

What is an example of energy transformation in a flashlight?

Back

In a flashlight, a battery transforms chemical energy into electrical energy, which is then converted into light energy.

Front

What are some examples of renewable energy sources?

Back

Examples of renewable energy sources include wind, solar, biomass, and hydroelectric power.