Waves and Light Unit Review

Front

What is a translucent material?

Back

A translucent material allows some light to pass through but not enough to see clearly through it, like frosted glass.

Front

In which medium do sound waves NOT travel?

Back

Sound waves do not travel in a vacuum of space.

Front

What happens to light when it changes speed?

Back

When light changes speed, it refracts, meaning it bends as it passes from one medium to another.

Front

What type of energy are x-rays and UV light classified as?

Back

X-rays and UV light are classified as electromagnetic (EM) energy.

Front

What is frequency in relation to the electromagnetic spectrum?

Back

Frequency refers to the number of waves that pass a point in one second, and each member of the EM spectrum has a different frequency.

Front

What is the definition of a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

Front

What is the difference between reflection and refraction?

Back

Reflection is when light bounces off a surface, while refraction is when light bends as it passes through different mediums.

Front

What is an example of a transparent material?

Back

An example of a transparent material is clear glass, which allows light to pass through without scattering.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

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 (or about 186,282 miles per second).