AP (Advanced Placement) Physics(B-C): Questions 382 - 384 of 921

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Question number: 382

» Fluids & Solids

MCQ▾

Question

Freshwater lake has a surface area of and a depth of, and freshwater lake has a surface area of and a depth of . Compare the total pressure at the bottom of lake with that of lake .

Choices

Choice (5) Response

a.

Lake A has greater pressure at the bottom, because it has a greater volume of water.

b.

Lake A has greater pressure at the bottom, because it has a greater depth.

c.

Lake B has greater pressure at the bottom, because it has a greater surface area.

d.

The two lakes have equal pressure at the bottom.

e.

All of the above

Question number: 383

» Electric Circuits

MCQ▾

Question

A battery with an of has an internal resistance of . What is the current through the battery when it is connected to an external resistance of ?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 384

» Linear Momentum

MCQ▾

Question

A car moving at a speed is brought to rest in time by a force . To stop the car in one half the time , what force is required?

Choices

Choice (5) Response

a.

Force must be one fourth as large as .

b.

Force must be twice as large as .

c.

The forces required to stop the car are the same in both situations.

d.

Force must be half as large as .

e.

Question does not provide sufficient data or is vague

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