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??Topic?? Review Question Unit: Work and Energy Question: As the speed of a bicycle moving along a level horizontal surface changes from 2 meters per second to 4 meters per second, the magnitude of the bicycle's gravitational potential energy? (1 ) decreases (2 ) increases (3 ) stays the same What is this question really asking? [ Return to question menu ] Answer 1 decreases INCORRECT The gravitational potential will only change if the height changes. return to top Answer 2 increases INCORRECT The only time the GPE changes is when there is a change in height. return to top Answer 3 stays the same CORRECT This answer is correct, because GPE depends upon height not speed. return to top What's this question really asking? Does gravitational energy change because of speed? return to top |
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This web site is designed and maintained by Science Joy Wagon and may
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