Periodic Motion, Mechanical Waves & Sound (AP (Advanced Placement) Physics(B-C)): Questions 1 - 2 of 73

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Question number: 1

» Periodic Motion, Mechanical Waves & Sound

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Question

Blowing across a tube open at both ends produces a musical note. If you place your finger over the open end of the tube at the bottom and blow across the top of the tube, a second note is produced. Compare the pitch and frequency of the second note to that of the note produced with the pitch and frequency of the original note.

Choices

Choice (5) Response

a.

The second note has a lower pitch and one half the frequency.

b.

The second note has a higher pitch and one half the frequency.

c.

The second note has a lower pitch and twice the frequency.

d.

The second note has a higher pitch and twice the frequency.

e.

None of the above

Question number: 2

» Periodic Motion, Mechanical Waves & Sound

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Question

A person is driving on a divided highway at , and encounters an emergency vehicle with a siren that is emitting a constant frequency. In which of the following situations will he hears the highest frequency from the siren?

Choices

Choice (5) Response

a.

The emergency vehicle is ahead of you, moving away from you at .

b.

The emergency vehicle is ahead of you, moving toward you from the other direction at .

c.

The emergency vehicle is in the lane next to you, moving in the same direction at .

d.

The emergency vehicle is behind you, moving in your direction at .

e.

Question does not provide sufficient data or is vague