# AP Physics: Trivia Quiz On Circular Motion And Gravitation!

5 Questions | Total Attempts: 118  Settings  .

• 1.
When calculating the gravitational force between two extended bodies, you should measure the distance
• A.

From the closest points on each body.

• B.

From the most distant points on each body.

• C.

From the center of each body.

• D.

From the center of one body to the closest point on the other body.

• 2.
What is the centripetal force that holds planets in orbit?
• A.

Inertia

• B.

Gravitational force

• C.

Planetary force

• D.

Kepler’s force

• 3.
The force that Earth exerts on the moon
• A.

Is greater than the force the moon exerts on Earth.

• B.

Is less than the force the moon exerts on Earth.

• C.

Is equal in magnitude to the force the moon exerts on Earth.

• D.

Causes tides.

• 4.
How does the gravitational force between two objects change if the distance between the objects doubles?
• A.

The force decreases by a factor of 4.

• B.

The force decreases by a factor of 2.

• C.

The force increases by a factor of 2.

• D.

The force increases by a factor of 4.

• 5.
The law of universal gravitation states that
• A.

Two objects always exert gravitational forces on each other.

• B.

The force of gravity depends on the mass and the distance between the two objects.

• C.

All objects fall at different rates on earth.

• D.

Both a and b.

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