Waves Review

Refraction occurs when a wave

• enters a new medium at an angle and bends
• hits a surface through which it cannot pass
• moves around a barrier
• interferes with another wave

The interaction between two waves that meet is called

• reflection
• refraction
• diffraction
• interference

The pitch of a sound that you hear depends on the sound wave's

• loudness
• frequency
• intensity
• speed

All waves carry 

• energy
• water
• sound
• matter

why can't sound travel through a vacuum?

• there is no matter in a vacuum
• the wavelength is too long
• the amplitude is too high
• a vacuum is too hot

Mechanical waves are created when a source of energy causes a medium to

• move
• compress
• expand
• vibrate

The highest point on a wave is:

• the crest
• the trough
• the top
• the coast 

The lowest point on a wave is the:

• Amplitude
• Crest
• Trough
• Wavelength

Which wave has the shortest wavelength?

• 1

• 2

• 3

• 4

Which wave has highest frequency?

• A

• B

• C

• D