Chpt. 3 Gravity
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Created by:
AnthonyMcMurry on April 5, 2011
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10 terms
Terms | Definitions |
|---|---|
 gravity | the attractive force between two objects, which depends on the masses and distance between them |
| 4 basic forces | gravity, electromagnetic force, strong nuclear force, weak nuclear force |
| Law of Universal Gravitation | this equation allows the force of objects to be determined. F = (constant) G X ((mass 1) x (mass 2)) / distance squared |
| Range of Gravity | as the distance increases between objects, the gravity becomes weaker. however, gravity never disappears, it is a long-range force |
| Force of Earth's Gravity | Force of gravity (N) = Mass (kg) X acceleration of gravity (m/s2) F = mg |
| Weight | the gravitational force exerted on an object |
| Weight Formula | weight (N) = mass (kg) X acceleration of gravity (m/s2) W = mg |
| horizontal motion | the forward motion when you throw a ball |
| vertical motion | the downward motion when gravity pulls the ball to the ground |
| centripetal force | acceleration toward the center of a curve or circular path. when water stays in a bucket as you swing it in a circle |
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