Waves

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

What property of this wave is represented by the letter "A"

• amplitude
• crest
• trough
• wavelength

What property of the wave is represented by the letter "B"?

• amplitude
• crest
• trough
• wavelength

The highest point on a wave is:

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

The number of wavelengths that pass a point each per second is:

• frequency
• period
• longitudinal 
• transverse wave 

When the frequency of a wave increases, what happens to the wavelength?

• The wavelength is not directly affected by the frequency of a wave.
• The wavelength increases.
• The wavelength decreases.
• More specific information is needed to form a conclusion about the wavelength.

A mechanical wave cannot travel through...

• a vacuum(empty space).
• water.
• air. 
• glass.

Which wave in the diagram has the greatest frequency?

• 1
• 2
• 3
• 4

Electromagnetic waves include the following except

• radio waves
• X-rays
• doing the wave at a football game
• microwaves

which material does sound travel the fastest?

• solid 
• liquid 
• gases