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Energy and the Rollercoaster

Energy and the Rollercoaster. CPO Science. What happens to the motion of a marble on a hilly track? How is energy conserved on a roller coaster?. Key Questions. Time Measurement. Stopwatch mode Who can get the shortest time to display?. Time Measurement.

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Energy and the Rollercoaster

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  1. Energy and the Rollercoaster CPO Science \\screen\Internal\TeacherII\Teacher II.ppt 4/2/2014 6:55:25 PM Page 1

  2. What happens to the motion of a marble on a hilly track? How is energy conserved on a roller coaster? Key Questions

  3. Time Measurement • Stopwatch mode • Who can get the shortest time to display?

  4. Time Measurement • Plug one end of phone cord into the photogate, and the other end into slot A of the timer box • Turn on the “A” light • How does the photogate operate the timer box? • NOW see who can get the shortest time to display!

  5. Roller Coasters • Millennium Force at Cedar Point: • 300 ft drop • 80 degree angle of descent • 93 mph • $25 million to build • Fastest coaster: Japan, 106.9 mph • Biggest wooden coaster drop: Paramount’s King Island, 214 ft drop

  6. The CPO Rollercoaster

  7. Where does the marble move the fastest?

  8. Investigate Motion of Marble • How long does it take the marble to break the photogate beam at each of the 7 positions? • Do smaller times correspond to faster or slower speeds?

  9. Investigate Motion of Marble • How would you calculate the speed?

  10. At what two positions is the marble moving the fastest? What is unique about these two positions?

  11. How does the speed of marble 1 compare to the speed of marble 2? • How does the time it takes each marble to reach this point compare?

  12. Investigate the relationship between speed and height more closely • Find the speed of the marble for each of 12 different positions on the coaster • Use the table provided to record your data (note: you don’t have to measure height of marble) • When finished, please complete the speed vs. position graph

  13. COOL GRAPH!

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