5.2 Energy

Front

What is energy transformation?

Back

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

Front

What are the different forms of energy?

Back

The main forms of energy include mechanical, electrical, thermal, radiant (light), and sound energy.

Front

How does a violinist transform energy while playing?

Back

A violinist transforms mechanical energy from the bow into sound energy as the strings vibrate.

Front

What is radiant energy?

Back

Radiant energy is energy that travels in waves, such as light energy from the sun or a flashlight.

Front

Can energy be created or destroyed?

Back

No, energy cannot be created or destroyed; it can only be transformed from one form to another.

Front

What happens to electrical energy in a hairdryer?

Back

In a hairdryer, electrical energy is transformed into thermal energy to produce heat.

Front

What is an example of radiant energy usage?

Back

Using a flashlight at night is an example of utilizing radiant energy.

Front

What is mechanical energy?

Back

Mechanical energy is the energy associated with the motion and position of an object.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating objects, which creates sound waves.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, often felt as heat.