Universal Gravitation Review

Check all the true statements about the Law of Universal Gravitation.

• All objects in the universe attract all other objects in the universe.

• The force of attraction increases when mass(es) increase.

• The force of attraction decreases when the distance between the masses increases.

• Gravity can either attract or repel.

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Check all that are true about the Earth and the moon.

• The Earth's pull on the moon is greater than the moon's pull on the Earth because the Earth is bigger.

• Mass on the moon is the same as mass on the Earth.

• Weight on the moon is the same as weight on the Earth.

• If gravity were to disappear, the moon would fly out into space.

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According to the Law of Universal Gravitation, mass and the gravitational force are

• indirectly proportional

• directly proportional

• not related at all

• -10 m/s/s

According to the Law of Universal Gravitation, the distance between 2 objects and the gravitational force are

• indirectly proportional

• directly proportional

• not related at all

• -10 m/s/s

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If the Earth's mass suddenly tripled but the radius remained the same, what would happen to your weight?

• It would also triple

• It would be reduced by 1/3

• it would be reduced by 1/9

• It would remain the same

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If the mass of either m₁ or m₂ is increased then the force of gravitation between them will...

• increase

• decrease

• stay the same

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NGSS.HS-PS2-4

If the distance between 2 masses is increased then the force of gravitation between them will...

• increase

• decrease

• stay the same

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If the mass of either m₁ or m₂ is decreased then the force of gravitation between them will...

• increase

• decrease

• stay the same

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If the distance between 2 masses is decreased then the force of gravitation between them will...

• increase

• decrease

• stay the same

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Which pair of masses will have the greatest gravitational force of attraction between them?

• top pair because they have the greatest masses and are closer together

• middle pair, because they are closer together

• bottom pair because they have the greatest masses and are further apart

• all have the same Fg

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