AP (Advanced Placement) Physics(B-C): Questions 420 - 423 of 920

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Question number: 420

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

As sound travels through a medium, its amplitude decreases or is attenuated by scattering and absorption. Attenuation of sound in fluids directly increases with:

Choices

Choice (5) Response

a.

The density of the medium and the speed of sound in the medium

b.

The frequency of the sound and the viscosity of the medium

c.

The speed and frequency of the sound

d.

The density of the medium and the frequency of the sound

e.

All of the above

Question number: 421

» Magnetic Field & Electromagnetism

MCQ▾

Question

The mass of a charged particle can be determined by analyzing its motion as it moves into a magnetic field in a synchrotron. Assume a particle with a charge moving at velocity into a magnetic field of strength , perpendicular to the direction of the field. The particle moves in a circular path with a radius . Which of the following equations can be used to calculate the mass of the particle?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 422

» Linear Momentum

MCQ▾

Question

A cart on a level air track is moving at when it strikes and connects to a stationary cart of the same mass. What is the final velocity of the connected carts?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 423

» Work, Energy and Power

MCQ▾

Question

If a light bulb uses of power for an hour, what is the energy used by the bulb?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

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