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Phsyics Jeopardy. Work & Energy. v & a. Newton’s First. Newton’s Second. Newton’s Third. F D t = m D v. 100. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 400. 500. 500. 500. 500. 500. 500.

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  1. Phsyics Jeopardy Work & Energy v & a Newton’s First Newton’s Second Newton’s Third FDt=mDv 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500

  2. Speed is a rate at which what happens? A 100

  3. Distance is covered A 100

  4. You walk across the room at 2 kilometers per hour. Show this as an abbreviated unit. A 200

  5. km/h A 200

  6. Acceleration is the rate at which what happens? A 300

  7. Velocity changes A 300

  8. What is the acceleration of a vehicle that travels in a straight line at 100km/h? A 400

  9. 0 km/h2 A 400

  10. Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 8 seconds. A 500

  11. v=80m/s, d=320m A 500

  12. If you were in a spaceship and fired a cannonball into frictionless space, how much force would have to be exerted on the ball to keep it going? B 100

  13. None, a force is required to change motion! B 100

  14. What is the weight of 2 kilograms of feathers? B 200

  15. (2kg)(9.8m/s2)=~20N B 200

  16. Forces of 10N and 15N are pushing an object in the same direction. What is the net force? B 300

  17. 25N B 300

  18. If forces of 10N and 15N push an object in opposite directions, what is the net force? B 400

  19. +5N B 400

  20. Susie Small finds that she weighs 300N. Calculate her mass. B 500

  21. (300N)/(9.8m/s2)=~30kg B 500

  22. How much force does a 20,000kg rocket develop to accelerate 1m/s2? C 100

  23. (20000kg)(1m/s2)=20,000N C 100

  24. If the force of friction on a sliding crate is 100N, how much force must be applied to maintain a constant velocity? C 200

  25. 100N C 200

  26. Which has more pressure on the ground, a person standing up or a person lying down? C 300

  27. Standing C 300

  28. DAILY DOUBLE DAILY DOUBLE Place A Wager C 400

  29. Calculate the acceleration of a 2000kg airplane just before takeoff when the thrust of its engine is 500N. C 400

  30. (500N)/(2000kg)=0.25m/s2 C 400

  31. Calculate the horizontal force that must be applied to produce an acceleration of 1.8g for a 1.2kg puck on a horizontal, friction-free table. C 500

  32. (1.2kg)(1.8)(9.8m/s2)=21.2N C 500

  33. When a hammer exerts a 20N force on a nail, how does the amount of force compare with that of the nail on the hammer? D 100

  34. 20N (same) D 100

  35. Why can’t you it a feather in mid-air with a force of 200N? D 200

  36. The feather can’t hit back that hard! D 200

  37. When you walk along the floor, what pushes you along? D 300

  38. The floor pushing you back D 300

  39. When you jump up, the Earth “jumps” down. Why don’t we notice this? D 400

  40. The mass of Earth is MUCH larger than your mass. D 400

  41. How can a rocket be propelled above the atmosphere where there is no air to push against? D 500

  42. The rocket is propelled by the reaction force of the gas D 500

  43. Distinguish between mass and momentum E 100

  44. Mass- inertia Momentum- inertia in motion E 100

  45. Distinguish between impact and impulse E 200

  46. Impact- force Impulse- force applied over time E 200

  47. In terms of the impulse-momentum theorem, why is it advantageous to wear a seatbelt and have airbags? E 300

  48. They extend the Dt of collision, thereby decreasing the force E 300

  49. What is the momentum of an 8kg bowling ball rolling at 2m/s? E 400

  50. (8kg)(2m/s)=16kg•m/s E 400

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