AP (Advanced Placement) Physics(B-C): Questions 736 - 738 of 920

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Question number: 736

» Work, Energy and Power

MCQ▾

Question

A object of mass is placed on the surface of the earth, and another object of mass is located at the height three times of the radius of earth above the surface of earth. What is the ratio of the magnitude of the gravitational potential energies of earth – object of mass to that of earth – object of mass .

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 737

» Work, Energy and Power

MCQ▾

Question

A flexible plastic ruler on the top of a table is flexed horizontally a distance of , and a rock is placed against it. When the ruler is released and the rock is propelled off the edge of the table, it is determined that the rock has a speed of . Determine the elastic constant , of the ruler.

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 738

» Light & Optics

MCQ▾

Question

Which of the following statements is true regarding polarization of light?

Choices

Choice (5) Response

a.

The intensity of polarized light is not changed when it passes through a polarizer.

b.

The intensity of polarized light is reduced by half when it passes through a polarizer.

c.

The intensity of polarized light is not affected by the incident angle as it reaches a polarizer.

d.

The amount that the intensity of unpolarized light is reduced depends on the incident angle as it reaches the polarizer.

e.

None of the above

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