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change in Gravitational Potential Energy (GPE)
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our teacher wrote that when an object is lifted up from a Planet the change in GPE is negative and that when the object falls onto the planet.. the change in GPE is positive but I keep getting the opposite answers (lifted up from a Planet GPE is positive) I'm really confused x.x I was planning her ask her today but there was a sub (sub didn't know anything) and we have the test tomorrow... so please help me if anyone understands >< thanks lots! ![](\"https://pa1.narvii.com/7184/15e463ce0dfd96cf33d960fd69eaeba58b2a2053r1-280-210_hq.gif\") æ‹ãŒã—ãŸã„。 |
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Re: change in Gravitational Potential Energy (GPE)
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by
on 2009-11-17 18:31:09 |
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Your are right. Higher objects have more potential energy. This energy is turned into kinetic energy as the object falls. 
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Re: change in Gravitational Potential Energy (GPE)
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thanks so much!!! my teacher was probably in a hurry =) yay thanQ!! æ‹ãŒã—ãŸã„。 |