5.6A Energy

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 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 fire.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy that causes the particles in an object to move.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves. It is how we hear sounds like music, voices, and noises.

Front

How does mechanical energy work in a slingshot?

Back

In a slingshot, mechanical energy is stored when the rubber band is pulled back. When released, this energy propels the ball forward.

Front

What type of energy does the sun provide to Earth?

Back

The sun provides thermal energy, which warms the Earth and is essential for life.

Front

What is the best use of electrical energy?

Back

Electrical energy is best used to power devices and appliances, such as lights, computers, and refrigerators.

Front

What happens when a doorbell rings?

Back

When a doorbell rings, sound energy is generated, allowing us to hear the ringing.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a ball held at a height has potential energy.