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5
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Think about the relationship between mass and gravity. More mass = (more / less) gravity?
More mass = More gravity
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15
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What are the two forces called shown by the arrows in this image?
Gravity and Inertia
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15
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If you double the mass of one object, how much would the force of gravity between the two objects change?
The force of gravity would be 2 times more.
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5
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Fill in the blank: The greater the distance between objects, the (smaller/greater) the force of attraction.
smaller
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eraser
Reset score!
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fairy
Take points!
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25
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gift
Win 20 points!
Okay!
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thief
Give points!
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25
15
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Imagine the sun suddenly has no gravity. What would happen to the Earth's motion?
The Earth would travel in a straight line out of the solar system (due to inertia)
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15
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Which planet was predicted and discovered using Newton's law of gravity?
Neptune
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15
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Explain mass in your own words.
Mass is the amount of matter in an object
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15
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The law of Inertia says that objects at rest will stay at rest, and objects in motion...
will keep moving at a constant speed.
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5
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Gravity is the force that (pulls objects towards each other / pushes objects away from each other)?
Pulls objects towards each other
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15
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Imagine the Earth suddenly has no gravity. What would happen if you dropped an apple?
The apple would simply float in one place (due to inertia)
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15
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If you double the mass of both objects, how much would the force of gravity change?
The force of gravity would be 4 times more.
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10
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Name two forces that keep the planets in orbit around the Sun.
Gravity and Inertia
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thief
Give points!
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15
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25
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gift
Win 15 points!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 15 points!
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eraser
Reset score!
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fairy
Take points!
5
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25
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shark
Other team loses 5 points!
Okay!
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thief
Give points!
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25
15
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Why would the same person weight more on one planet than on another one?
The larger planet has more gravity and makes your weight increase (even though your mass stays the same.
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