Front

What is light?

Back

Light is a form of energy that travels in waves.

Front

What does reflection mean?

Back

Reflection is when light bounces off a surface.

Front

What type of wave can travel through matter or empty space?

Back

Electromagnetic Waves can travel through both matter and empty space.

Front

What is the material through which a wave passes called?

Back

The material is called the medium.

Front

Which electromagnetic wave is associated with heat?

Back

Infrared Rays are the electromagnetic waves given off as heat.

Front

What are the two main categories of waves?

Back

The two main categories of waves are Mechanical Waves and Electromagnetic Waves.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second.

Front

What is the visible spectrum?

Back

The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.

Front

What are radio waves used for?

Back

Radio waves are used for communication, such as in radios and televisions.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.