Quiz Gravitation

The amount of matter in an object

• mass
• weight
• inertia
• gravity

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What states that "every object in the universe attracts every other object"?

• Law of Universal Gravitation
• Newton's First Law of Motion
• My mother
• Inertia & gravity

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Which of the following is Newton's Law on Gravitation?

• F=Gm₁m₂/r
• F = Gm₁m₂/r²
• F = Gm₁m₂/2r
• F = m₁m₂/2r

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The moon and other satellites rotate around the earth. Identify the force that keeps these satellites in orbit.

• gravity
• friction
• a strong force
• electromagnetic force

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Force of gravity is directly proportional to

• Mass
• Weight
• Distance
• Time

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Force of gravity is inversely proportional to

• Mass
• Weight
• Distance
• Time

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According to Newton's law of gravitation, the Earth and the Moon are gravitationally attracted to each other. The more massive Earth attracts the Moon with...

• a stronger force than the Moon attracts the Earth.

• a weaker force than the Moon attracts the Earth.

• the same force as the Moon attracts the Earth.

• a force that is sometimes stronger and other times weaker than the Moon attracts the Earth.

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The picture shows the gravitational field in the space surrounding the Earth. What is creating this gravitational field?

• The gravitational force.

• The mass of the Earth.

• The distance of the Earth.

• The universal gravitational constant.

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What would the gravitational force be between the Sun and Mars if they were 2.3*10¹¹ m apart? The masses for the Sun and Jupiter are 1.99*10³⁰ kg and 6.42*10²³kg, respectively.

• F_g = 3.8*10¹⁵ N

• F_g = 2.8*10^-42 N

• F_g = 1.6*10²¹ N

• F_g = 4.6*10^-75 N

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How are mass and gravitational force related?

• indirectly
• inversely
• inverse squarely
• directly

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