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Physics Review Question Unit: Motion in a plane Year: 1994 Question#: 65 Question: As the distance between the Moon and the Earth increases, the moon's orbital speed (1 ) decreases (2 ) increases (3 ) remains the same What is this question really asking? Explanation by: David B [ Return to question menu ] Answer 1 (1) decreases CORRECT The Earth's orbit is eliptical. The earth is located at one of the focuses. As the moon moves farther from the Earth it gaines potential energy and looses kinetic energy and therefore looses speed. return to top Answer 2 (2) increases INCORRECT The moon moves farther from the earth it is slowed by gravity, so it looses kinetic energy. return to top Answer 3 (3) remains the same INCORRECT return to top Answer 4 No ansewer four return to top What's this question really asking? The question is asking what effect does distance have on the change in potential and kinetic energy of the Moon. return to top |
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