1. Jeopardy

2. Kinetic and Potential Types of Potential Energy Formulas and Stuff The Labs Energy Relationships 100 200 300 400 500

3. Energy is: A. the buildup of charges on an object. B. the force that is created from the Earth. C. the ability to do work or cause change. D. the force of one newton 100 Category 1

4. The Law of Conservation of Energy states: A. Energy is conserved as it changes from one form to another. B. Energy can neither be created or destroyed. C. The total amount of energy remains the same. D. All of the above. 200 Category 1

5. What units are used to express energy? A. kilograms B. newtons per meter C. joules D. newtons 300 Category 1

6. Energy exists in two states: _____________________ energy and _____________________ energy. 400 Category 1

7. As energy transformations occur within a system, the total energy of the system: A. is transferred out of the system B. decreases C. remains constant D. increases 500 Category 1

8. ____________ is the energy stored in an object due to its position off the ground. A. entropy B. gravitational potential energy C. thermal energy D. stored mechanical energy 100 Category 2

9. Stored mechanical energy : A. is stored in bonds between atoms. B. is related to mass and height of the object off the ground. C. can be increased by moving it to a greater height. D. is stored in objects that are compressed or stretched. 200 Category 2

10. The energy of a rock on a hill is: A. A. stored mechanical energy B. B. kinetic energy C. C. gravitational potential energy D. D. total energy 300 Category 2

11. Galileo drops a ball from the top of the Leaning Tower of Pisa. As the ball accelerates toward Earth, it gains kinetic energy. Where does this energy come from? A. the energy that is stored from Earth B. the energy stored in the ball because of its height above the ground. C. the energy that is created by the falling ball. D. All of the above. 400 Category 2

12. What happens to the energy of a falling object as it accelerates towards Earth? A. Gravitational potential energy decreases. B. Potential energy is transformed into kinetic energy. C. Kinetic energy increases. D. All of the above. 500 Category 2

13. The mass of an object multiplied by the height of object off the ground, multiplied by gravitational acceleration ( m x h x g) is the formula to calculate: ____________ ____________ ___________ 100 Category 3

14. A student’s backpack weighs 5 kgs. The student lifts the backpack off the floor onto a table that is 2 meters high. How much potential energy is now stored in the backpack? ___________ ___________ (formula: mass x height x g) g = 9.8 m/s 200 Category 3

15. What is the formula for kinetic energy? A. mass x height x gravitational acceleration B. mass x speed x gravitational acceleration 2 C..5 x mass x (speed) 2 D. mass x height x (speed) 300 Category 3

16. Suppose you weigh 50 kgs and you climb up a staircase that is 4 meters high. What is your change in potential energy? A. 1000 joules B. 196 joules C. 200 joules D. 1960 joules 400 Category 3

17. Find the kinetic energy of a 40 kg swimmer, who is swimming at the speed of 6 m/s. A. 240 joules B. 72 joules C. 720 joules D. 120 joules 2 (formula: K.E.=.5 x mass x (speed) 500 Category 3

18. The energy of a ball flying through the air is: A. thermal energy B. kinetic energy C. gravitational potential energy D. total energy 100 Category 4

19. What happens to a ball when it is dropped? A. Potential and kinetic energy stay the same. B. Potential changes to Kinetic energy. C. Kinetic energy changes to Potential energy. D. The total energy is decreased. 200 Category 4

20. In the skate park lab, the skater has ______ kinetic energy before dropping in at the top of the track. A. 10 % B. 0 % C. 50 % D. 100 % 300 Category 4

21. In the Dropper Popper lab, the reason that the popper bounces back higher than the tennis ball is because: A. the material of the popper is made of rubber. B. a force was applied to the popper by turning it inside out, resulting in stored mechanical energy. C. the popper weighs less than the tennis ball. D. the gravitational acceleration is different for the popper than the tennis ball. 400 Category 4

22. In the frog lab, stored mechanical energy is is referred to as: A. chemical energy B. mechanical energy C. elastic potential energy D. gravitational potential energy 500 Category 4

23. What is the relationship between potential and kintetic energy? A. When one goes up, the other goes up. B. When one goes down, the other goes down. C. When one goes up, the other goes down. D. They are both equal. 100 Category 5

24. What is the relationship between kinetic energy and speed? A. As kinetic energy decreases, speed increases. B. There is no relationship between speed and kinetic energy. C. As kinetic energy increases, speed decreases. D. As kinetic energy increases, speed increases. 200 Category 5

25. Two people are jumping off a diving board at the same time and at the same height, but they have two different masses. Who hits the water first? A. The one with the smallest mass B. They both hit the water at the same time C. The one with the largest mass D. The one with the longer hair 300 Category 5

26. How does friction affect what happens to the kinetic energy of the skater on the skate track? A. Friction causes the kinetic energy of the skater to transform into thermal energy, which slows down the skater. B. Friction causes the kinetic energy of the skater to transform into thermal energy, which speeds up the skater. C. Friction has no effect on kinetic energy. D. Friction causes the kinetic energy to be transformed into gravitational potential energy. 400 Category 5

27. What kind of energy will you use to digest your Thanksgiving dinner? A. gravitational potential energy B. chemical energy C. electrical energy D. radiant energy 500 Category 5

28. C. The ability to do work or cause change. 100 Category 1 Answer

29. D. All of the above. 200 Category 1 Answer

30. C. Joules 300 Category 1 Answer

31. Potential and Kinetic. 400 Category 1 Answer

32. C. remains constant. 500 Category 1 Answer

33. B. gravitational potential energy 100 Category 2 Answer

34. D. is stored in objects that are compressed or stretched. 200 Category 2 Answer

35. C. gravitational potential energy. 300 Category 2 Answer

36. B. the energy that is stored in the ball because of its position above the ground. 400 Category 2 Answer

37. D. All of the above. 500 Category 2 Answer

38. Gravitational Potential Energy 100 Category 3 Answer

39. 200 98 joules Category 3 Answer

40. 2 C..5 x mass x (speed) 300 Category 3 Answer

41. D. 1960 joules 400 Category 3 Answer

42. C. 720 joules. 500 Category 3 Answer

43. B. kinetic energy 100 Category 4 Answer

44. B. potential changes to kinetic energy. 200 Category 4 Answer

45. B. 0 % 300 Category 4 Answer

46. B. a force was applied to the popper by turning it inside out, resulting in stored mechanical energy. 400 Category 4 Answer

47. C. elastic potential energy 500 Category 4 Answer

48. C. When one goes up, the other goes down. 100 Category 5 Answer

49. D. As kinetic energy increases, speed increases. 200 Category 5 Answer

50. B. they both hit the water at the same time. 300 Category 5 Answer

51. A. Friction causes the kinetic energy of the skater to transform into thermal energy, which slows down the skater. 400 Category 5 Answer

52. B. chemical energy 500 Category 5 Answer