2. Vocabulary Work Problems Potential Energy Problems Kinetic Energy Problems Extra Questions 10 20 30 40 50

3. Question 1 - 10 Anything that can cause change

4. Answer 1 – 10 What is… energy

5. Question 1 - 20 Stored energy due to position

6. Answer 1 – 20 What is… potential energy

7. Question 1 - 30 Energy due to motion

8. Answer 1 – 30 kinetic energy

9. Question 1 - 40 force multiplied by distance in the same direction as the force

10. Answer 1 – 40 work

11. Question 1 - 50 Energy cannot be created or destroyed only transferred from one form to another

12. Answer 1 – 50 Law of Conservation of Energy

13. Question 2 - 10 A boy pushes on a car with a force of 500 N. The car does not move. How much work does the boy do?

14. Answer 2 – 10 0 J (No work)

15. Question 2 - 20 What are the units for work?

16. Answer 2 – 20 Joules (J)

17. Question 2 - 30 In order for work to be done force and distance must be in what direction?

18. Answer 2 – 30 the same direction

19. Question 2 - 40 Calculate the work done to lift a barbell 1.5 m with a force of 300 N?

20. Answer 2 – 40 450 J

21. Question 2 - 50 How far did a baseball travel if a force of 100 N was applied and 200 J of work was done?

22. Answer 2 – 50 2 meters

23. Question 3 - 10 What are the units for potential energy?

24. Answer 3 – 10 Joules (J)

25. Question 3 - 20 When calculating potential energy, the equation is E p =mgh. What does g stand for? What value does it have?

26. Answer 3 – 20 Gravity 10 m/s/s

27. Question 3 - 30 What is the potential energy of a book that is 3 meters off the ground and has a mass of 2 kg?

28. Answer 3 – 30 60 J

29. Question 3 - 40 If a 70 kg barbell is lifted off the ground 2 m, what is the potential energy of the barbell?

30. Answer 3 – 40 1,400 J

31. Question 3 - 50 How high is a bird that has a potential energy of 50 J and has a mass of 0.5 kg?

32. Answer 3 – 50 10 m

33. Question 4 - 10 What is the equation to solve for kinetic energy?

34. Answer 4 – 10 KE=1/2*m*v 2

35. Question 4 - 20 What are the units for Kinetic energy?

36. Answer 4 – 20 Joules (J)

37. Question 4 - 30 A medicine ball has a mass of 5 kg and is thrown with a speed of 2 m/s. What is the kinetic energy?

38. Answer 4 – 30 10 J

39. Question 4 - 40 If I double the mass of an object, what happens to its kinetic energy?

40. Answer 4 – 40 KE doubles

41. Question 4 - 50 If I double the speed of an object, what happens to its kinetic energy?

42. Answer 4 – 50 KE is 4 times bigger

43. Question 5 - 10 One book is sitting on the floor. Another book is sitting on the table. Assuming both books have the same mass, which one has more potential energy?

44. Answer 5 – 10 The book on the table

45. Question 5 - 20 Why did the bowling ball not hit Bill Nye in the face?

46. Answer 5 – 20 kinetic energy can’t be greater than potential energy.

47. Question 5 - 30 Kinetic energy of an object depends on what two things?

48. Answer 5 – 30 mass and velocity

49. Question 5 - 40 In the lab, which height gave the tennis ball the most kinetic energy?

50. Answer 5 – 40 1 m

51. Question 5 - 50 A 20 kg object falls 2 meters to the floor. At what point does kinetic energy equal potential energy?

52. Answer 5 – 50 Halfway to the floor

53. Final Jeopardy A 1 kg coconut falls out of a tree from a height of 12 m. Determine the coconut’s potential and kinetic energy at each point shown in the picture. Its speed is zero at point A.