7th grade unit 3 Review

Front

True or False: Humans can see all segments of the electromagnetic spectrum.

Back

False

Front

What happens to light when it passes from air into glass?

Back

The light wave is refracted.

Front

What does it demonstrate when a pencil looks bent in a cup of water?

Back

Refraction.

Front

What did we use to demonstrate a longitudinal wave in class?

Back

Slinkys.

Front

What is the place where a longitudinal wave is close together called?

Back

Compression.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is reflection?

Back

The bouncing back of light when it hits a surface.

Front

What is diffraction?

Back

The bending of waves around obstacles or through openings.

Front

What is a longitudinal wave?

Back

A wave in which the particles of the medium move parallel to the direction of the wave.