AP (Advanced Placement) Physics(B-C): Questions 411 - 413 of 920

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Question number: 411

» Work, Energy and Power

MCQ▾

Question

A rock is thrown at a speed of horizontally from the top of a tall building. What is the kinetic energy of the rock when it hits the ground?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 412

» Magnetic Field & Electromagnetism

MCQ▾

Question

In the illustration, a very long copper wire is positioned so that it lies between the poles of a strong horseshoe magnet. What is the effect of the magnet on the electrons in the metal wire?

A copper wire, between two poles

A Copper Wire, Between Two Poles

In figure, a copper wire positioned so that it lies between poles of the strong horses magnet.

Choices

Choice (5) Response

a.

The electrons begin to move to the left.

b.

The electrons begin to curve to one side of the wire.

c.

The magnet does not affect the electrons in the wire.

d.

The electrons begin to move to the right.

e.

Question does not provide sufficient data or is vague

Question number: 413

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

Which of the following is an example of sound diffraction?

Choices

Choice (5) Response

a.

A fire truck siren sounds higher in pitch when it is moving toward you than when the truck stops.

b.

On a cold night at the ballpark, you see the batter hit a ball and then hear the sound.

c.

You are able to hear a sound from an invisible car horn around the corner of a building.

d.

A car horn sounds less loud as it moves away from you.

e.

None of the above

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