Waves: Question Preview (ID: 5965)

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When two or more waves are at the same place at the same time, the resulting effect is called
a) a standing wave.
b) a shock wave.
c) interference.
d) the Doppler effect.

When two waves are "in phase" what type of interference are they experiencing?
a) constructive
b) destructive

When the crest of one wave overlaps the trough of another, which type of interference occurs?
a) constructive
b) destructive

Standing waves occur because of
a) interference
b) wave speed
c) frequency
d) wavelength

At the antinodes of a standing wave, what type of interference is occuring?
a) constructive
b) destructive
c) none

Nodes in a standing wave normally remain stationary.
a) True
b) False

The Doppler effect is the change in observed frequency due to
a) the motion of the source.
b) the medium through which the wave travels.
c) the type of wave.
d) Both the motion of the source and the medium.

As a sound source (such as an ambulance) moves toward you, the pitch of the sound
a) increases
b) decreases
c) does not change

Blue shift and red shift refer to how the Doppler effect can affect which type of wave?
a) light
b) sound
c) water
d) longitudinal

If a star is experiencing red shift, it is moving
a) away from us.
b) toward us.

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