# The Principles of Planetary motion

This is an MCQ-based quiz on the topic of The Principles of Planetary motion.

This includes the following:-

• The radius of the planet

• Mass of the planet

• Gravitational Force

• Attraction Force

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Does Newton's law of universal gravitation state that masses of objects have gravity

True

False

Did Newton's law of universal gravitation state that the force of gravitation is dependent upon the masses of the two objects?

True

False

How will the distance between the two masses affect the gravitational forces?

More separation, greater gravitational forces

Less separation, greater gravitational forces

More separation, weaker gravitational forces

Less separation, weaker gravitational forces

What will be the force of gravity if the mass of one of the objects is tripled?

1/3

3

Same

0

Will more massive objects attract each other with a greater gravitational force or a smaller gravitational force?

Greater

Smaller

If you stood atop a ladder on Earth that was as tall as Earth's radius (so you were twice as far from Earth's center) your weight atop the ladder would be _____.

1/8

1/4

1/2

0

The gravitational force between two massive spheres

Attraction

Repulsion

Both A & B

None of the above

A planet has half the mass of the Earth and half the radius. Compared to its weight on Earth, an apple on this planet would weigh _____

Twice

One-fourth

Half

Same

The force of gravity on you is greatest when you are standing _____ Earth’s surface.

Far above

Just above

On

None of the above

If Earth's mass decreased to one half its original mass, with no change in radius, then your weight would _____

Same

Decrease

Increase

None of the above

Quiz/Test Summary
Title: The Principles of Planetary motion
Questions: 10
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