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Questions and Answers
What does the law of universal gravitation state?
What does the law of universal gravitation state?
Every object in the universe pulls on every other object.
What is gravitational potential energy dependent on?
What is gravitational potential energy dependent on?
Mass and height above the surface of the Earth.
Which scientist proposed that the Sun is the center of the universe?
Which scientist proposed that the Sun is the center of the universe?
- Newton
- Kepler
- Copernicus (correct)
- Galileo
What happens to the force of gravity as objects get farther apart?
What happens to the force of gravity as objects get farther apart?
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What are Kepler's three laws of planetary motion generally about?
What are Kepler's three laws of planetary motion generally about?
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Gravity is strongest at higher altitudes.
Gravity is strongest at higher altitudes.
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Match the following scientists with their contributions to the understanding of gravity:
Match the following scientists with their contributions to the understanding of gravity:
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The force of gravity on the surface of the Earth is strongest, but it is weaker when going ______ or ______.
The force of gravity on the surface of the Earth is strongest, but it is weaker when going ______ or ______.
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