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

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Presentation on theme: "Who Wants To Be A Millionaire? 4 th Year Moments and Pressure."— Presentation transcript:

1

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 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 N/m 2 D N/m 2

17 A person is standing on both feet, with flat trainers, each of which has an ground contact area of 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 N/m 2 D 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 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 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 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

45 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

46 £64,000

47 Question 12

48 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

49 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

50 £125,000

51 Question 13

52 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 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

53 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 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

54 £250,000

55 Question 14

56 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

57 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

58 £500,000

59 Question 15

60 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

61 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

62 £1,000,000


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