Video #2 The Doppler Effect: what does motion do to waves?
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If the moving object is emitting light and not sound, it is not the pitch that is changing, it is the __________.
color
How do you detect sound waves that are being stretched out by a moving object?
A lower pitch
Blueshift is the technique astronomers use to tell which way a star is moving.
false (redshift).
How do you detect sound waves that are being compressed by a moving object?
A higher pitch
When a moving object is heading towards a stationary object what happens to the waves the object is emitting?
They bunch up or compress
When a moving object is heading away a stationary object what happens to the waves the object is emitting?
They stretch out or elongate
This apparent change of wave frequency is known as the Doppler Effect.
True
