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2 cards from this section. Quick, good the night before a test.
What is the gravitational force?
Think of how objects are pulled toward Earth.
Define escape speed.
Consider a rocket launching into space.
What is the effect of increasing distance between two masses on their gravitational attraction?
Think about how distance influences the pull you feel from gravity.
True or False: Kepler's laws apply to the motion of all planets.
Recall how Kepler's laws were formulated.
Calculate the gravitational force between two objects of masses 2 kg and 3 kg placed 1 meter apart.
Remember to use the gravitational constant accurately.
Using the information that the radius of Earth is 6400 km, determine the change in gravitational pull at an altitude of 1000 km.
Recall the formulas for g at different heights.
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