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Roller Coaster Labs

Roller Coaster Labs. The stand needs to be between the blue knob & the coaster!. The Photogate needs to be tight against the bottom of the coaster!. Start the Marble at the Wooden Peg. The Marble "Triggers" the Timer. How far did the Marble travel during this time?.

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Roller Coaster Labs

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  1. Roller Coaster Labs

  2. The stand needs to be between the blue knob & the coaster!

  3. The Photogate needs to be tight against the bottom of the coaster!

  4. Start the Marble at the Wooden Peg

  5. The Marble "Triggers" the Timer

  6. How far did the Marble travel during this time?

  7. The diameter of the Marble

  8. Do your own "number crunching"

  9. Which line is PE & which is KE?

  10. Fastest to Slowest

  11. Describe what happens if you start the marble at each of the 3 places shown.

  12. Would the speed of the marble be different on these 2 coasters?

  13. What would a KE vs. PE graph look like for this coaster?

  14. Conservation of Energy • Is energy transformation from Potential to Kinetic 100%?

  15. We need SI units to calculateKE & PE.

  16. We need SI units to calculateKE & PE.

  17. The diameter of the marble needs to be in meters. Speed of Marble needs to be in Meters/Second

  18. The mass of the marble needs to be in kilograms (kg). 28.2 g 1000 grams = 1 kilogram

  19. Height needs to be in meters! .283 meters To change cm to m, move the decimal 2 places to the left.

  20. The stand needs to be between the blue knob & the coaster!

  21. All energies need to be calculated to the ten-thousandth (0.0001) of a Joule Do your own “number crunching”!

  22. Sample Problems PE = 0.0282 kg x 9.8 m/s2x 0.347 m = 0.0959 J KE = 0.0282 kg x (0.420 m/s)2= 0.0025 J 2 Total Energy = 0.0959 J + 0.0025 J = 0.0984 J Use your data! Your answers will be slightly different.

  23. How to # the axis

  24. If the transformation of KE to PE was 100%, the sum of energies at the beginning of the track equals the sum of energies at the end of the track. Was this the case?

  25. Will the marble have the greatest speed if it rolls down side 1 or side 2?

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