AP (Advanced Placement) Physics(B-C): Questions 375 - 378 of 920

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Question number: 375

» Fluids & Solids

MCQ▾

Question

An irregularly shaped piece of halite (salt) has a mass of . In order to find its volume without dissolving it, it is submerged in oil, which has a density of . The sample displaces of oil. What is the density of the sample?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 376

» Fluids & Solids

MCQ▾

Question

A certain pipe carries water at , delivering per minute. The water is then cooled to . How does the volume rate of flow compare, and what is the best explanation?

Choices

Choice (5) Response

a.

The flow rate will stay the same, because rate of flow does not depend on temperature.

b.

The flow rate will increase, because viscosity increases when temperature is lower.

c.

The flow rate will decrease, because the decrease in viscosity will decrease speed.

d.

The flow rate will decrease, because viscosity increases.

e.

None of the above

Question number: 377

» Fluids & Solids

MCQ▾

Question

A tank is tall and has a bottom area of . It is filled to a depth of with fresh water. Calculate the absolute pressure at the bottom of the tank.

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 378

» Magnetic Field & Electromagnetism

MCQ▾

Question

In the illustration, the magnetic field is increasing out of the page in the circular wire loop. What current is induced in the loop?

The circular wire loop in magnetic field

The Circular Wire Loop in Magnetic Field

In figure, the circular wire loop in magnetic field is shown.

Choices

Choice (5) Response

a.

Clockwise

b.

Counterclockwise

c.

Alternating in direction

d.

No current is induced.

e.

None of the above

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