AP (Advanced Placement) Physics(B-C): Questions 400 - 402 of 921

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Question number: 400

» Electric Circuits

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MCQ▾

Question

In the graph, the plots of Current as a Function of Time and Voltage as a Function of Time are superimposed for an alternating current circuit. Which of the following statements is true regarding the circuit?

Voltage and Current as a function of time

Voltage and Current as a Function of Time

Choices

Choice (5)Response

a.

The voltage and current are maxima at the same point in time.

b.

The voltage times the current is equal to the power output.

c.

The voltage is equal to the maximum voltage divided by .

d.

All a. , b. and c. are correct

e.

Question does not provide sufficient data or is vague

Question number: 401

» Work, Energy and Power

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MCQ▾

Question

A pendulum is pulled back and released from a position m higher than its position at the bottom of its swing. What is the speed of the pendulum bob as it moves through the equilibrium position at the bottom of its swing after it is released?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

Question number: 402

» Electric Circuits

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MCQ▾

Question

In which of the following actions is the most average power required?

Choices

Choice (5)Response

a.

Changing the kinetic energy of a rolling wheel from to in

b.

Pushing a block across a level surface with a net force of at a velocity of

c.

Burning a lightbulb that has a resistance of using

d.

Lifting a block to a height of in

e.

None of the above

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