AP (Advanced Placement) Physics(B-C): Questions 9 - 12 of 920

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Question number: 9

» Electrostatics

MCQ▾

Question

A metal sphere with a charge of comes into contact with a metal sphere of identical size that has a charge of . The spheres are then separated. What are the charges on the spheres after they are separated?

Choices

Choice (5) Response

a.

Each sphere has a charge of .

b.

Each sphere has a charge of .

c.

Two spheres have zero net charge.

d.

Each sphere retains its original charge.

e.

All of the above

Question number: 10

» Force and Newton's Law of Motion

MCQ▾

Question

At a distance of from Earth’s center, the acceleration due to gravity is about . What is the closest estimate of the acceleration due to gravity at a point from Earth’s center?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 11

» Gravitation and Circular Motion

MCQ▾

Question

Three objects are positioned along a line. Each has a mass of and an x coordinate as shown in the illustration. Which of the following is true for net gravitational force on one due to the other two objects?

Three objects are placed in a line

Three Objects Are Placed in a Line

In figure, three objects are placed in a line is shown.

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 12

» Electrostatics

MCQ▾

Question

In figure, three positive charges of equal magnitude are placed at vertices of an equilateral triangle. At which point the electrostatic potentials due to each three charges are same?

Three positive charges

Three Positive Charges

In figure three positive charges are placed.

Choices

Choice (5) Response

a.

Orthocenter of triangle

b.

Everywhere in triangle

c.

Midpoint of side of triangle

d.

At point of charge

e.

None of the above

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