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9 Cards in this Set
- Front
- Back
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asteroids
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rocky fragments that may have been the remains of the birth of a solar system that never formed into a planet
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comets
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masses of frozen gases, cosmic dust and sm rocky particles. most originate in a dense comet cloud beyond pluto
haley - most famous every 75-76 yrs |
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meteroids
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particles of rock/metal of various sizes
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meteor
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burning meteoriod falling thru earth's atmosphere (shooting start)
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Meteorites
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metoriods that strike e's surface
Barringer Crater - meteor crater |
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orbit
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result of the balance between forward motion of object and pull of gravity
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centripetal force
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force directed toward the center of the circle in order to keep the motion going
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tides
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changes in the level of the ocean caused by varying gravitational pull of the moon as it orbits the earth
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barycenter
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the interaction of the gravity between the earth and the moon produces a common center of gravity between earth and moon
causes high and low tides as it rotates around E |
