Transcript of "8th grade-Ch. 1 Sec. 2 Gravity & Motion"
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Sec. 2 Gravity & Motion
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force <ul><ul><li>a push or a pull </li></ul></ul>
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gravity <ul><ul><li>force that attracts all objects toward each other </li></ul></ul><ul><ul><li>measured in newtons </li></ul></ul>
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<ul><ul><li>mass of objects </li></ul></ul><ul><ul><li>distance between objects </li></ul></ul><ul><li>(force as </li></ul><ul><li>distance ) </li></ul>strength of gravity depends on 2 factors
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Newton’s law of universal gravitation <ul><ul><li>every object in universe attracts every other object </li></ul></ul>
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mass weight Amount of matter in an object Force of gravity on an object
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inertia <ul><ul><li>tendency of an object to resist a change in motion </li></ul></ul><ul><ul><li>ex: egg in glass trick </li></ul></ul>
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