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Jeopardy review mfe ch 1

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Jeopardy review mfe ch 1

  1. 1. Moving Right Along I Was Framed Momentous Occasion Gimme a Problem 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4
  2. 2. Momentous Occasion 2 • A bowling ball with a mass of 10 kg hits a stationary bowling ball with a mass of 5 kg and gives up all of its momentum to the 5 kg bowling ball. • The 10 kg ball was going 2 m/s. • What will the speed of the 5 kg ball be? Back
  3. 3. Momentous Occasion 2 • It will have twice the speed because momentum is conserved. • Back
  4. 4. Momentous Occasion 3 • Does anything on earth have zero momentum if you use the sun as a frame of reference? • Back
  5. 5. Momentous Occasion 3 • no
  6. 6. Gimme a Problem 1 • If a runner sustains a 10 m/s sprint for 150 m, how much time will the sprinter have run for?
  7. 7. Gimme a Problem 1 • 15 s
  8. 8. Gimme a Problem 2 • A Yankees fan is being chased by a Red Sox fan in the streets of Boston. The Yankees fan is running at 30 km/hr. He is chased from 6:30 pm until 7:00 pm. How far did he get chased?
  9. 9. Gimme a Problem 2 • 15 km
  10. 10. Moving Right Along 1 • An airplane travels at a rate of 400 km/hr. Its destination is 1200 km away. What is the flight duration? • If the plane has to fly into a wind that averages 100 km/hr, what is the new flight duration?
  11. 11. Moving Right Along 1 • 3 hours • 4 hours
  12. 12. Moving Right Along 2 • How are speed and velocity different?
  13. 13. Moving Right Along 2 • Speed is just distance/time • Velocity is the same with direction
  14. 14. Moving Right Along 3 • On a distance-time graph, if the graph line curves, then you know the object being graphed has _________________?
  15. 15. Moving Right Along 3 • accelerated
  16. 16. Momentous Occasion 1 What is the momentum equation? What does momentum measure?
  17. 17. Momentous Occasion 1 • Mass times velocity • How hard it is to stop a moving object
  18. 18. Moving Right Along 4 • If the earth orbits around the sun at the same speed all the time, is it accelerating? Why/ why not?
  19. 19. Moving Right Along 4 • Because it is changing direction
  20. 20. I was Framed 1 • If you are chasing a friend on your bike and going at the same speed and you use your bike as a frame of reference, is your friend moving?
  21. 21. I was Framed 1 • no
  22. 22. I Was Framed 2 • If you put a slinky on an escalator that is going up and the slinky stays there doing what slinkys are supposed to do (slink)…. • …then: What is its speed, in m/s? • Ps: The escalator stairs move at .8 m/s…
  23. 23. I Was Framed 2 • Using the earth as a frame of reference, its speed is 0 m/s • Using the escalator as a frame of reference, its speed is .8 m/s
  24. 24. I Was Framed 3 • If you are on a moving sidewalk that is going 1.5 m/s and you walk with it at the same speed and in the same direction as it moves, what is your speed?
  25. 25. I Was Framed 3 • 3 m/s using the earth as a frame of reference
  26. 26. I Was Framed 4 • A deep sea diver can lose track of which way is up. • What can she use as a frame of reference if everything around her is nothing but darkness?
  27. 27. I Was Framed • Bubbles
  28. 28. Gimme a Problem 3 On this graph, which object has the greatest acceleration?
  29. 29. Gimme a Problem 3 • B
  30. 30. Gimme a Problem 4 On this Graph, describe, in words the motion of objects B and D.
  31. 31. Gimme a Problem 4

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