who wants to be a millionaire? 4 th year moments and pressure
TRANSCRIPT
Who Wants To Be A Who Wants To Be A Millionaire?Millionaire?
4th Year Moments and
Pressure
Question 1
Which of the following is a unit of a moment?
A Newton per square metre
B Newton
C metres squared
D Newton metre
A Newtons per square metre
B Newton
C metres squared
D Newton metre
Which of the following is a unit of a moment?
£100
Question 2
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
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?
Which is 'designed' to create the low pressure on contact with a surface?
£200
Question 3
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
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
£300
Question 4
A person is standing on both feet, with flat trainers, each of which has an ground
contact area of 0.025 m2. If the person weighs 800 N, what pressure is
created on the ground?
A 2000 N/m2
B 0.2 N/m2
C 16000 N/m2
D32000 N/m2
A person is standing on both feet, with flat trainers, each of which has an ground
contact area of 0.025 m2. If the person weighs 800 N, what pressure is
created on the ground?
A 2000 N/m2
B 0.2 N/m2
C 16000 N/m2
D32000 N/m2
£500
Question 5
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
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
£1,000
Question 6
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
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
£2,000
Question 7
Which of the following is a unit of pressure?
A Pascal
B Newton
C Newton metre
D metres squared
Which of the following is a unit of pressure?
A Pascal
B Newton
C Newton metre
D metres squared
£4,000
Question 8
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
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
£8,000
Question 9
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/m2
B 3.3 N/cm2
C 3000 N/m2
D 1080 Pa
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/m2
B 3.3 N/cm2
C 3000 N/m2
D 1080 Pa
£16,000
Question 10
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/m2, what is the minimum single ski surface area
acceptable, for a skier of weight 800 N?
A 0.2 m2
B 5 m2
C 0.4 m2
D 0.1 m2
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/m2, what is the minimum single ski surface area
acceptable, for a skier of weight 800 N?
A 0.2 m2
B 5 m2
C 0.4 m2
D 0.1 m2
£32,000
Question 11
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/cm2
B 12,000 N/m2
C 1200 N/m2
D 7500 N/cm2
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/cm2
B 12,000 N/m2
C 1200 N/m2
D 7500 N/cm2
£64,000
Question 12
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
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
£125,000
Question 13
The diagram shows a simple machine to punch holes in a sheet
of material. The lever is pulled down to produce the hole. If d1 is
10 cm, d2 120 cm and the pull down force F2 required is 2 N, what
punch force F1 is produced?
A 2.4 N
B 60 N
C 24 N
D 120 N
The diagram shows a simple machine to punch holes in a sheet
of material. The lever is pulled down to produce the hole. If d1 is
10 cm, d2 120 cm and the pull down force F2 required is 2 N, what
punch force F1 is produced?
A 2.4 N
B 60 N
C 24 N
D 120 N
£250,000
Question 14
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
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
£500,000
Question 15
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
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
£1,000,000