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Gravity and Motion Review . If you were to jump off of a very high diving board you would fall downward at a very fast pace. What force pulls you toward the ground?. Gravity. Define the word orbit:. Definition of orbit. Draw a picture of objects orbiting one another: . What is gravity?.

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Presentation Transcript
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If you were to jump off of a very high diving board you would fall downward at a very fast pace.What force pulls you toward the ground?
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Sample Answers: 1. A space shuttle orbiting around the Earth.

2. The moon orbiting the Earth.

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What can you conclude about these objects and the gravitational force between them?

1.

2.

3.

4.

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Diagram 3 has the most gravitational force between the two objects because they are the largest objects and they are the closest together.
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Two objects have a certain gravitational force between them. What would happen if the mass of one of the objects suddenly increased?
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Why would the moon have a greater effect on the Earth, for example on our ocean’s tides and waves, than the sun?
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The law of universal gravitation says all bodies attract each other. If you drop a penny, it falls to Earth. Why doesn’t the gravitational attraction between your hand and the penny keep it from falling?
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There is a gravitational attraction between you and the penny, but Earth’s gravity is stronger, so Earth’s gravity pulls the penny down.
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The Law of Universal Gravity states that gravitational attraction exists between any two bodies anywhere in the universe.
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Upon what two factors does the magnitude of the gravitational force between two objects depend?
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The magnitude of the gravitational force depends on the masses of the objects involved and the distance between them.
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This is possible because of the gravitational force that body has on the object. Without gravity, the object would not be able to orbit.
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