2. Who Wants To Be A Millionaire? 4 th Year Moments and Pressure

3. Question 1

4. Which of the following is a unit of a moment? A Newton per square metre B Newton C metres squared D Newton metre

5. A Newtons per square metre B Newton C metres squared D Newton metre Which of the following is a unit of a moment?

6. £100

7. Question 2

8. Which is 'designed' to create the low pressure on contact with a surface? A a snowboard for winter sports B a cheese knife blade C the crampons on a mountain climbers boots D the blades of ice skates

9. A a snowboard for winter sports B a cheese knife blade C the crampons on a mountain climbers boots D the blades of ice skates Which is 'designed' to create the low pressure on contact with a surface?

10. £200

11. Question 3

12. Which statement is FALSE about being trodden on by a stiletto heeled shoe? A the stiletto heel causes a high pressure because a small weight acts on a large surface area B the stiletto heel produces a high pressure situation C the smaller the under surface of the stiletto heel, the higher the pressure created D it is less painful if trodden on by the front part of the shoe, rather than the stiletto heel, because the weight of the person is spread over a larger area

13. Which statement is FALSE about being trodden on by a stiletto heeled shoe? A the stiletto heel causes a high pressure because a small weight acts on a large surface area B the stiletto heel produces a high pressure situation C the smaller the under surface of the stiletto heel, the higher the pressure created D it is less painful if trodden on by the front part of the shoe, rather than the stiletto heel, because the weight of the person is spread over a larger area

14. £300

15. Question 4

16. A person is standing on both feet, with flat trainers, each of which has an ground contact area of 0.025 m 2. If the person weighs 800 N, what pressure is created on the ground? A 2000 N/m 2 B 0.2 N/m 2 C 16000 N/m 2 D 32000 N/m 2

17. A person is standing on both feet, with flat trainers, each of which has an ground contact area of 0.025 m 2. If the person weighs 800 N, what pressure is created on the ground? A 2000 N/m 2 B 0.2 N/m 2 C 16000 N/m 2 D 32000 N/m 2

18. £500

19. Question 5

20. Which is NOT true about a football and football boots? A the sole has a much broader area than the studs so the pressure is increased and the boot does not sink into the ground too easily B the studs have a small contact area compared to the sole, to increase the pressure, so they penetrate the ground easily C if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises D the more air that is pumped into a football, the greater the gas pressure

21. Which is NOT true about a football and football boots? A the sole has a much broader area than the studs so the pressure is increased and the boot does not sink into the ground too easily B the studs have a small contact area compared to the sole, to increase the pressure, so they penetrate the ground easily C if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises D the more air that is pumped into a football, the greater the gas pressure

22. £1,000

23. Question 6

24. A spanner is 14 cm long, and is turned with a force of 7 N. What is the applied turning effect of the force or its moment? A 98 Nm B 0.98 Nm C 2 Nm D 0.5 Ncm

25. A spanner is 14 cm long, and is turned with a force of 7 N. What is the applied turning effect of the force or its moment? A 98 Nm B 0.98 Nm C 2 Nm D 0.5 Ncm

26. £2,000

27. Question 7

28. Which of the following is a unit of pressure? A Pascal B Newton C Newton metre D metres squared

29. Which of the following is a unit of pressure? A Pascal B Newton C Newton metre D metres squared

30. £4,000

31. Question 8

32. A material obeys Hooke’s Law when the force applied to it is A inversely proportional to its extension B proportional to its length C directly proportional to its extension D directly linear to its length

33. A material obeys Hooke’s Law when the force applied to it is A inversely proportional to its extension B proportional to its length C directly proportional to its extension D directly linear to its length

34. £8,000

35. Question 9

36. A bag of sugar has a base of 6 cm x 10 cm. If it weighs 18 N, what pressure does it create standing on a shelf? A 0.108 N/m 2 B 3.3 N/cm 2 C 3000 N/m 2 D 1080 Pa

37. A bag of sugar has a base of 6 cm x 10 cm. If it weighs 18 N, what pressure does it create standing on a shelf? A 0.108 N/m 2 B 3.3 N/cm 2 C 3000 N/m 2 D 1080 Pa

38. £16,000

39. Question 10

40. A ski design team has to take into account the pressure created by the skier on the surface of deep snow. If the maximum acceptable snow pressure is 4000 N/m 2, what is the minimum single ski surface area acceptable, for a skier of weight 800 N? A 0.2 m 2 B 5 m 2 C 0.4 m 2 D 0.1 m 2

41. A ski design team has to take into account the pressure created by the skier on the surface of deep snow. If the maximum acceptable snow pressure is 4000 N/m 2, what is the minimum single ski surface area acceptable, for a skier of weight 800 N? A 0.2 m 2 B 5 m 2 C 0.4 m 2 D 0.1 m 2

42. £32,000

43. Question 11

44. A spanner is a useful tool to apply the turning effect of a force or a moment. Which is a FALSE statement about the situation? A applying 'loosening oil' to the bolt and nut reduces friction B the shorter the spanner, the smaller is the maximum turning force that can be produced C the middle of the spanner acts as the 'lever pivot point' D in tightening or loosening a nut, the spanner must overcome the force of friction

45. A spanner is a useful tool to apply the turning effect of a force or a moment. Which is a FALSE statement about the situation? A applying 'loosening oil' to the bolt and nut reduces friction B the shorter the spanner, the smaller is the maximum turning force that can be produced C the middle of the spanner acts as the 'lever pivot point' D in tightening or loosening a nut, the spanner must overcome the force of friction

46. £64,000

47. Question 12

48. A brick has a base of 10 cm x 25 cm and weighs 30 N. what pressure does a stack of ten bricks create simulating the pressure created by a low wall? A 0.12N/cm 2 B 12,000 N/m 2 C 1200 N/m 2 D 7500 N/cm 2

49. A brick has a base of 10 cm x 25 cm and weighs 30 N. what pressure does a stack of ten bricks create simulating the pressure created by a low wall? A 0.12N/cm 2 B 12,000 N/m 2 C 1200 N/m 2 D 7500 N/cm 2

50. £125,000

51. Question 13

52. When a spring is stretched using a 200g mass, the length of the spring is 27.6cm. What will the extension be with 600g hanging on it? (original length= 5.6cm) A 82.8 cm B 66.0 cm C 44.0 cm D 55.2 cm

53. When a spring is stretched using a 200g mass, the length of the spring is 27.6cm. What will the extension be with 600g hanging on it? (original length= 5.6cm) A 82.8 cm B 66.0 cm C 44.0 cm D 55.2 cm

54. £250,000

55. Question 14

56. The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. If d 1 is 10 cm, d 2 120 cm and the pull down force F 2 required is 2 N, what punch force F 1 is produced? A 2.4 N B 60 N C 24 N D 120 N

57. The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. If d 1 is 10 cm, d 2 120 cm and the pull down force F 2 required is 2 N, what punch force F 1 is produced? A 2.4 N B 60 N C 24 N D 120 N

58. £500,000

59. Question 15

60. The diagram shows a force versus extension graph for a spring. What will happen to the plot if the spring is replaced with a weaker spring? A The intercept will decrease B The plot will curve upward then plateau C The gradient will decrease D The plot will curve downward then plateau

61. The diagram shows a force versus extension graph for a spring. What will happen to the plot if the spring is replaced with a weaker spring? A The intercept will decrease B The plot will curve upward then plateau C The gradient will decrease D The plot will curve downward then plateau

62. £1,000,000

63. Question 16

64. The tabletop has a mass of 5.0kg. What force is needed at F to maintain it in a horizontal position? A 112.5N B 1250 N C 65 N D 87.5 N

65. The tabletop has a mass of 5.0kg. What force is needed at F to maintain it in a horizontal position? A 112.5N B 1250 N C 65 N D 87.5 N