Unit 3: Waves - Unit Test Review

Front

What is the primary reason Kate sees the firework explosion before hearing the sound?

Back

Sound waves travel more slowly in the air than light waves.

Front

What type of waves do NOT require a medium to travel?

Back

Light waves.

Tags

NGSS.HS-PS4-3

Front

What must light waves from the sun travel through to reach a coral reef 10 m below water?

Back

All of the above (air, water, and any other medium present).

Tags

NGSS.MS-PS4-2

Front

What happens to a light wave when it enters a new medium perpendicular to the surface?

Back

It refracts.

Tags

NGSS.MS-PS4-2

Front

True or False: Sound travels slowest through solids because the particles are tightly packed.

Back

False.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (km/s).

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Front

How do sound waves travel through different mediums?

Back

Sound waves travel fastest through solids, slower through liquids, and slowest through gases.

Tags

NGSS.MS-PS4-2

Front

What is refraction in the context of waves?

Back

Refraction is the bending of waves as they enter a new medium at an angle.

Tags

NGSS.MS-PS4-2

Front

What is the relationship between wavelength and frequency in waves?

Back

Wavelength and frequency are inversely related; as one increases, the other decreases.

Tags

NGSS.HS-PS4-1

Front

What is a medium in the context of wave propagation?

Back

A medium is the substance through which a wave travels, such as air, water, or solid materials.

Tags

NGSS.MS-PS4-2