AP (Advanced Placement) Physics(B-C): Questions 346 - 349 of 920

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Question number: 346

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

Sound waves produced in one end of a cardboard tube (point ) move to the ear of a listener at the other end of the tube (point ). As the waves move from to inside the tube, which one of the following does occur?

Choices

Choice (5) Response

a.

Oscillations of molecules occur perpendicular to a line from to .

b.

The frequency of oscillations decreases as the waves move farther in the tube from to .

c.

Air molecules are transferred from to .

d.

Energy is transferred from to .

e.

None of the above

Question number: 347

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

At what point during the oscillation of a pendulum is the acceleration of the pendulum bob equal to zero?

Choices

Choice (5) Response

a.

At the amplitude of the swing

b.

At the bottom of the swing

c.

Halfway between the amplitude and bottom of the swing on the way up

d.

Halfway between the amplitude and bottom of the swing on the way down

e.

Question does not provide sufficient data or is vague

Question number: 348

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

The equation for a certain harmonic oscillator is . The amplitude and period of the oscillations are, respectively,

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 349

» Electric Circuits

MCQ▾

Question

Which of the following formulas correctly expresses the resistivity of a resistor that has resistance , length , and cross-sectional area ?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

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