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Explore the interplay of potential and kinetic energy through a series of questions examining a skater's motion over humps with and without friction on the track. Learn how energy transformation impacts the skater's ability to overcome obstacles.
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1. Do you think the Skater will make it over the first hump?(No friction on the track) • No, because his potential energy will be converted to thermal energy • No, because he doesn’t have enough potential energy • Yes, because all of his potential energy will be converted to kinetic energy • Yes, because some of his energy will be potential and some kinetic
2. Do you think the Skater will make it over the first hump?(lots oftrackfriction) • No, because his potential energy will be converted to thermal energy • No, because he doesn’t have enough potential energy • Yes, because all of his potential energy will be converted to kinetic energy • Yes, because some of his energy will be potential and some kinetic
3. Do you think the Skater will make it over the first hump?(No friction on the track) • No, because his potential energy will be converted to thermal energy • No, because he doesn’t have enough potential energy • Yes, because all of his potential energy will be converted to kinetic energy • Yes, because some of his energy will be potential and some kinetic
4. Do you think the Skater will make it over the first hump?(lots oftrackfriction) • No, because his potential energy will be converted to thermal energy • Yes, if not too much energy is converted to thermal • Yes, because all of his potential energy will be converted to kinetic energy • Yes, because some of his energy will be potential and some kinetic
5. In the next moment, the KE piece of the pie gets larger, then • The Skater is going up hill (left) • The Skater is going down hill (right) • There is no way to tell
6. In the next moment, the KE piece of the pie gets larger, then • The PE part stays the same • The PE part gets larger too • The PE part gets smaller • There is no way to tell
7. In the next moment, the KE piece of the pie gets larger, then • The Skater will be going faster • The Skater will be going slower • There is no way to tell