AP (Advanced Placement) Physics(B-C): Questions 223 - 225 of 921

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Question number: 223

» Work, Energy and Power

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MCQ▾

Question

A small metal cube with a temperature of is placed in contact with a much larger cube of the same metal with a temperature of . Assuming no loss of energy to the environment around the cubes, which of the following statements is true regarding the transfer of energy that takes place?

Choices

Choice (5)Response

a.

After a long time, the final temperature of both cubes will be .

b.

The smaller cube will undergo a greater change in temperature than the larger cube.

c.

The smaller cube will contain more internal energy than the larger cube after the two cubes reach an equilibrium temperature.

d.

The smaller cube will actually transfer more energy to the larger cube than the larger cube transfers to the smaller one.

e.

None of the above

Question number: 224

» Electric Circuits

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MCQ▾

Question

Which of the following quantities is equivalent to one ampere (A)?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 225

» Electric Circuits

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MCQ▾

Question

A parallel plate capacitor with plate area and plate separation and containing a dielectric with dielectric constant is charged to a potential difference of . The capacitor is discharged and the dielectric is replaced with a material that has a dielectric constant of without changing or . The modified capacitor is then charged again to . Compare the charge stored on the modified capacitor to the charge stored on the original capacitor.

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

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