AP (Advanced Placement) Physics(B-C): Questions 269 - 271 of 921

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Question 269

Question

MCQ▾

In which of the following situations is blood flow in a vessel most likely to become turbulent?

Choices

Choice (5)Response

a.

The blood flows from a vessel of large diameter to a vessel of smaller diameter.

b.

The blood becomes more viscous.

c.

The blood flows from a vessel of small diameter to a vessel of larger diameter.

d.

The blood becomes less dense due to hydration.

e.

All of the above

Question 270

Question

MCQ▾

The graph shows data for amplitude as a function of time for an object with a mass of oscillating on a spring. During which of the following time intervals does the spring do the largest magnitude of net work done on the object attached to it?

Graph of Amplitude as a Function of Time

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question 271

Question

MCQ▾

Ultrasonic sound waves can be transmitted into and reflected from different media, such as human tissue, to identify the structure, based on how strongly the transmitted sound amplitude decreases as a function of distance and frequency. Which of the following is the constant that quantifies this decrease in amplitude in a given material?

Choices

Choice (5)Response

a.

The elastic constant

b.

The coefficient of restitution

c.

The attenuation coefficient

d.

The coefficient of linear expansion

e.

All of the above

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