KS3 Science-Physics Quiz on "PRESSURE and MOMENTS" (based on QCA 9L)

Which of the following is a unit of force? [9L-1]
1. N
2. m²
3. N/m²
4. Nm
Which of the following is a unit of area? [9L-2]
1. N
2. m²
3. N/m²
4. Nm
Which of the following is a unit of pressure? [9L-3]
1. N
2. m²
3. N/m²
4. Nm
Which of the following is a unit of a moment? [9L-4]
1. N
2. m²
3. N/m²
4. Nm
Which of the following is a unit of pressure? [9L-5]
1. Pa
2. m²
3. N
4. Nm
Which of the following is a unit of force? [9L-6]
1. newtons x metres
2. newtons
3. metres squared
4. newtons per square metre
Which of the following is a unit of area? [9L-7]
1. newtons x metres
2. newtons
3. metres squared
4. newtons per square metre
Which of the following is a unit of pressure? [9L-8]
1. newtons x metres
2. newtons
3. metres squared
4. newtons per square metre
Which of the following is a unit of a moment? [9L-9]
1. newtons x metres
2. newtons
3. metres squared
4. newtons per square metre
Which of the following is a unit of pressure? [9L-10]
1. newtons x metres
2. pascal
3. metres squared
4. newtons
Which is 'designed' to create the greatest pressure on contact with a surface? [9L-11]
1. the feet of a camel
2. skis
3. drawing pin
4. snowshoes
Which is 'designed' to create the greatest pressure on contact with a surface? [9L-12]
1. the feet of a camel
2. skis
3. snowshoes
4. hypodermic needle on a syringe
Which is 'designed' to create the greatest pressure on contact with a surface? [9L-13]
1. scissor blade
2. snow board
3. snowshoes
4. the feet of a camel
Which is 'designed' to create the least pressure on contact with a surface? [9L-14]
1. scissor blade
2. snowshoes
3. drawing pin
4. hypodermic syringe needle
Which is 'designed' to create the least pressure on contact with a surface? [9L-15]
1. scissor blade
2. drawing pin
3. feet of a camel
4. hypodermic syringe needle
Which is 'designed' to create the least pressure on contact with a surface? [9L-16]
1. scissor blade
2. drawing pin
3. hypodermic syringe needlel
4. railway sleeper supporting the steel rail
If weight w1 is 4 N, distance d2 is 50 cm and weight w2 is 2 N, what distance d1, must weight w1 be from the pivot rod to balance the ruler? [9L-17]
1. 25 cm
2. 20 cm
3. 10 cm
4. 40 cm
If distance d1 is 40 cm, distance d2 is 8 cm and weight w2 is 15 N, what weight must w1 be to balance the ruler? [9L-18]
1. 6 N
2. 3 N
3. 9 N
4. 12 N
If weight w1 is 6 N, distance d1 is 30 cm and weight w2 is 36 N, what must distance d2 be to balance the ruler? [9L-19]
1. 10.0 cm
2. 15.0 cm
3. 5.0 cm
4. 2.5 cm
If distance d1 is 240 mm, weight w1 is 8 N and distance d2 is 320 mm, what weight must w2 be to balance the ruler? [9L-20]
1. 12 N
2. 3 N
3. 4 N
4. 6 N
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Two children sit in rubber tyres connected to a see-saw system. Which two children will balance the see-saw in a horizontal (level) position? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-21]
1. Joe and Sally
2. Joe and Mike
3. Mike and Sally
4. Mary and Sally
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Two children sit in rubber tyres connected to a see-saw system. If Joe sits on the left, which children will cause the see-saw to tip down on the right (clockwise)? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-22]
1. Sally or Mike
2. Mary or Fred
3. only Mary
4. only Fred
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Two children sit in rubber tyres connected to a see-saw system. If Sally sits on the left, which children cannot cause the see-saw to tip down on the right (clockwise)? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-23]
1. only Mike
2. only Joe
3. Joe or Mike
4. Mary or Fred
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Four children sit in rubber tyres connected to a see-saw system. If Mary and Sally sit on the right, which two children sitting on the left will balance the see-saw horizontally (level)? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-24]
1. Fred and Joe
2. Mike and Joe
3. Joe and his identical twin brother
4. Fred and Mike
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Mr Brown, weighing 755 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw tips down on the left side (anticlockwise) when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-25]
1. Joe and Mike
2. Mary and Sally
3. Joe and Sally
4. Mary and Fred
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Mr Gravity, weighing 770 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw stays in a horizontal (level) position when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-26]
1. Joe and Mike
2. Mary and Sally
3. Joe and Sally
4. Mary and Fred
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Mr Moon, weighing 760 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw stays in a horizontal (level) position when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-27]
1. Joe and Mike
2. Mary and Sally
3. Joe and Sally
4. Mary and Fred
child Joe Mary Fred Sally Mike
weight (N) 380 390 400 380 370
Mr Smith, weighing 780 N, sits on the left side of a see-saw. Who could be sitting on the right if the see-saw tips down on the right side when they all take their feet of the ground? (assume average distance from pivot or turning point, to the centre of the people is the same) [9L-28]
1. Joe and Mike
2. Mary and Sally
3. Joe and Sally
4. Mary and Fred
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-29]
1. the caterpillar tracks of a building site vehicle
2. the blades of ice skates
3. a cheese knife blade
4. the crampons on a mountain climbers boots
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-30]
1. the blades of ice skates
2. a roofer laying a ladder across a roof to work on a repair
3. a cheese knife blade
4. the crampons on a mountain climbers boots
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-31]
1. a cheese knife blade
2. the blades of ice skates
3. a snowboard for winter sports
4. the crampons on a mountain climbers boots
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-32]
1. the crampons on a mountain climbers boots
2. the blades of ice skates
3. a cheese knife blade
4. the skis for mountain sports
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to reduce the pressure of the situation? [9L-33]
1. an elephant's foot
2. the blades of ice skates
3. a cheese knife blade
4. the crampons on a mountain climbers boots
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to increase the pressure of the situation? [9L-34]
1. an elephant's foot
2. the blades of ice skates
3. the skis for mountain sports
4. the caterpillar tracks of a building site vehicle
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to increase the pressure of the situation? [9L-35]
1. a roofer laying a ladder across a roof to work on a repair
2. the skis for mountain sports
3. a cheese knife blade
4. the caterpillar tracks of a building site vehicle
Examples to help you get to the point of the question! or do you get a sinking feeling because P = F / A! Which features is designed to increase the pressure of the situation? [9L-36]
1. a roofer laying a ladder across a roof to work on a repair
2. an elephant's foot
3. a snowboard for winter sports
4. the crampons on a mountain climbers boots
Which is NOT true about a football and football boots? [9L-37]
1. the studs have a small contact area compared to the sole, to decrease the pressure, so they penetrate the ground easily
2. the sole has a much broader area than the studs so the pressure is reduced and the boot does not sink into the ground too easily
3. the more air that is pumped into a football, the greater the gas pressure
4. if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises
Which is NOT true about a football and football boots? [9L-38]
1. the studs have a small contact area compared to the sole, to increase the pressure, so they penetrate the ground easily
2. 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
3. the more air that is pumped into a football, the greater the gas pressure
4. if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises
Which is NOT true about a football and football boots? [9L-39]
1. the studs have a small contact area compared to the sole, to increase the pressure, so they penetrate the ground easily
2. the sole has a much broader area than the studs so the pressure is reduced and the boot does not sink into the ground too easily
3. the more air that is pumped into a football, the lower the gas pressure
4. if the temperature rises during a match, the plastic of the ball becomes softer and the gas pressure rises
Which is NOT true about a football and football boots? [9L-40]
1. the studs have a small area contact compared to the sole, to increase the pressure, so they penetrate the ground easily
2. the sole has a much broader area than the studs so the pressure is reduced and the boot does not sink into the ground too easily
3. the more air that is pumped into a football, the greater the gas pressure
4. if the temperature rises during a match, the plastic of the ball becomes harder and the gas pressure decreases
[9L-41] A spanner is 10 cm long (d), and is turned with a force of 20 N (F). What is the applied turning effect of the force or its moment?
1. 200 Ncm
2. 2 N/cm
3. 0.5 cm/N
4. 30 cmN
[9L-42]A spanner is 20 cm long (d), and is turned with a force of 5 N (F). What is the applied turning effect of the force or its moment?
1. 0.25 N/cm
2. 100 Ncm
3. 4 cm/N
4. 25 cmN
[9L-43] A spanner is 14 cm long (d), and is turned with a force of 7 N (F). What is the applied turning effect of the force or its moment?
1. 2 cm/N
2. 0.5 N/cm
3. 98 Ncm
4. 21 cmN
[9L-44] A spanner is 0.4 m long (d), and is turned with a force of 10 N (F). What is the applied turning effect of the force or its moment?
1. 10.4 mN
2. 2.5 N/m
3. 0.04 m/N
4. 4 Nm
[9L-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?
1. only in tightening, and not loosening, a nut, must the spanner overcome the force of friction
2. the axis of the bolt acts as the 'lever pivot point'
3. applying 'loosening oil' to the bolt and nut reduces friction
4. the shorter the spanner, the smaller is the maximum turning force that can be produced
[9L-46] 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?
1. in tightening or loosening a nut, the spanner must overcome the force of friction
2. the middle of the spanner acts as the 'lever pivot point'
3. applying 'loosening oil' to the bolt and nut reduces friction
4. the shorter the spanner, the smaller is the maximum turning force that can be produced
[9L-47] 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?
1. in tightening or loosening a nut, the spanner must overcome the force of friction
2. the axis of the bolt acts as the 'lever pivot point'
3. applying 'loosening oil' to the bolt and nut reduces the contact surface between them
4. the shorter the spanner, the smaller is the maximum turning force that can be produced
[9L-48] 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?
1. in tightening or loosening a nut, the spanner must overcome the force of friction
2. the axis of the bolt acts as the 'lever pivot point'
3. applying 'loosening oil' to the bolt and nut reduces friction
4. the shorter the spanner, the bigger the maximum turning force that can be produced
[9L-49] Which statement is NOT true?
1. gases are easy to compress to a smaller volume because of the weak forces between the particles
2. liquids are difficult to compress to a smaller volume because there is little space between the particles
3. solids are almost impossible to compress to a smaller volume because there is almost no space between the particles
4. the higher the pressure, the more a gas will dissolve in a liquid
[9L-50] Which statement is NOT true?
1. gases are easy to compress to a smaller volume because of lots space between the particles
2. liquids are easy to compress to a smaller volume because there is a little space between the particles
3. solids are almost impossible to compress to a smaller volume because there is almost no space between the particles
4. the higher the pressure, the more a gas will dissolve in a liquid
[9L-51] Which statement is NOT true?
1. gases are easy to compress to a smaller volume because of lots space between the particles
2. liquids are difficult to compress to a smaller volume because there is little space between the particles
3. solids are almost impossible to compress to a smaller volume because the attractive forces between the particles are so strong
4. the higher the pressure, the more a gas will dissolve in a liquid
[9L-52] Which statement is NOT true?
1. gases are easy to compress to a smaller volume because of lots space between the particles
2. liquids are difficult to compress to a smaller volume because there is little space between the particles
3. solids are almost impossible to compress to a smaller volume because there is almost no space between the particles
4. the higher the pressure, the less a gas will dissolve in a liquid
[9L-53] Which statement is FALSE about being trodden on by a stiletto heeled shoe?
1. the stiletto heel produces a low pressure situation
2. the smaller the under surface of the stiletto heel, the higher the pressure created
3. the stiletto heel causes a high pressure because a significant weight acts on a small surface area
4. 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
[9L-54] Which statement is FALSE about being trodden on by a stiletto heeled shoe?
1. the stiletto heel produces a high pressure situation
2. the smaller the under surface of the stiletto heel, the lower the pressure created
3. the stiletto heel causes a high pressure because a significant weight acts on a small surface area
4. 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
[9L-55] Which statement is FALSE about being trodden on by a stiletto heeled shoe?
1. the stiletto heel produces a high pressure situation
2. the smaller the under surface of the stiletto heel, the higher the pressure created
3. the stiletto heel causes a high pressure because a small weight acts on a large surface area
4. 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
[9L-56] Which statement is FALSE about being trodden on by a stiletto heeled shoe?
1. the stiletto heel produces a high pressure situation
2. the smaller the under surface of the stiletto heal, the higher the pressure created
3. the stiletto heel causes a high pressure because a significant weight acts on a small surface area
4. 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 smaller area
[9L-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 d1 is 10 cm, d2 120 cm and the pull down force F2 required is 2 N, what punch force F1 is produced?
1. 24 N
2. 2.4 N
3. 120 N
4. 60 N
[9L-58] The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. If d2 is 80 cm and the pull force F2 used is 4 N, what is the maximum length d1 can be to produce a minimum required punch force F1 of 40 N?
1. 2 cm
2. 8 cm
3. 4 cm
4. 10 cm
[9L-59] 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 9 cm, d2 108 cm and the punch force F1 required is 60 N, what is the minimum pull down force F2 required?
1. 54 N
2. 1.8 N
3. 5 N
4. 12 N
[9L-60] The diagram shows a simple machine to punch holes in a sheet of material. The lever is pulled down to produce the hole. When d1 is 12 cm, the punch force required F1 is 36 N if a pull-down force F2 of 3N is applied. What is the minimum length of the lever d2 required to punch the hole?
1. 108 cm
2. 72 cm
3. 60 cm
4. 144 cm
[9L-61]
Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?
1. liquids are good to use because they are fluid and readily compressed to a smaller volume
2. although very fluid, gases are no good because they are too easily compressed to a smaller volume
3. although not easily compressed to a smaller volume, solids are no good because they are not fluid
4. if air gets into a hydraulic system, the system becomes less effective because air is readily compressed to a smaller volume
[9L-62]
Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?
1. liquids are good to use because they are fluid and not readily compressed to a smaller volume
2. although not very fluid, gases are good because they are easily compressed to a smaller volume
3. although not easily compressed to a smaller volume, solids are no good because they are not fluid
4. if air gets into a hydraulic system, the system becomes less effective because air is readily compressed to a smaller volume
[9L-63]
Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?
1. liquids are good to use because they are fluid and not readily compressed to a smaller volume
2. although very fluid, gases are no good because they are too easily compressed to a smaller volume
3. although easily compressed to a smaller volume, solids are good because they are not too fluid
4. if air gets into a hydraulic system, the system becomes less effective because air is readily compressed to a smaller volume
[9L-64]
Which statement is NOT true about the material inside the cylinders and pipes of a hydraulic jack or car braking system?
1. liquids are good to use because they are fluid and not readily compressed to a smaller volume
2. although very fluid, gases are no good because they are too easily compressed to a smaller volume
3. although not easily compressed to a smaller volume, solids are no good because they are not fluid
4. if air gets into a hydraulic system, the system becomes less effective because air readily leaks out
[9L-65] 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?
1. 16000 N/m²
2. 32000 N/m²
3. 0.2 N/m²
4. 2000 N/m²
[9L-66] An elephant is standing on all of its feet, each of which has an ground contact area of 0.08 m². If the elephant weighs 50000 N, what pressure is created on the ground?
1. 625000 N/m²
2. 156250 N/m²
3. 0.2 N/m²
4. 2000 N/m²
[9L-67] A ski design team has to take into account the pressure created by the skier on the surface of deep snow. They need to the calculate the effects of the variables which are (i) area of one ski, (ii) weight of skier, (iii) pressure created by the skier on the snow and (iv) the pressure the snow can take without the skier sinking in too much! If the maximum acceptable snow pressure is 5000 N/m², for a single ski surface area of 0.15 m², what is the maximum weight the skier can be?
1. 33333 N
2. 375 N
3. 750 N
4. 15000 N
[9L-68] A ski design team has to take into account the pressure created by the skier on the surface of deep snow. They need to the calculate the effects of the variables which are (i) area of one ski, (ii) weight of skier, (iii) pressure created by the skier on the snow and (iv) the pressure the snow can take without the skier sinking in too much! If the maxium acceptable snow pressure is 4000 N/m², what is the minimum single ski surface area acceptable, for a skier of weight 800 N?
1. 0.1 m²
2. 0.4 m²
3. 5 m²
4. 0.2 m²
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? [9L-69]
1. 0.3 N/cm²
2. 3 N/cm²
3. 1.8 N/cm²
4. 18 N/cm²
A stiletto heal has a base area of 3 cm². If the woman weighs 750 N, what pressure does she create on the floor when standing on one heel? [9L-70]
1. 250 N/m²
2. 250 N/cm²
3. 2250 N/m²
4. 2250 N/cm²
A waste skip a base of 2m x 4m. If it weighs 10000 N when full, what pressure does it create when standing on the road? [9L-71]
1. 5000 N/m²
2. 5000 N/cm²
3. 1250 N/m²
4. 1250 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? [9L-72]
1. 3 N/m²
2. 3 N/cm²
3. 2.5 N/cm²
4. 1.2 N/cm²
Which statement is NOT true ? [9L-73]
1. the base of a dam is wider at the bottom than the top because that is where the lowest pressure is
2. the pressure in water increases with increase in depth of water
3. the pressure in water acts in all directions
4. the deeper a diver goes to examine the dam wall, the more nitrogen from the air supply dissolves in the blood
Which statement is NOT true ? [9L-73]
1. the base of a dam is wider at the bottom than the top because that is where the greatest pressure is
2. the pressure in water decreases with increase in depth of water
3. the pressure in water acts in all directions
4. the deeper a diver goes to examine the dam wall, the more nitrogen from the air supply dissolves in the blood
Which statement is NOT true ? [9L-75]
1. the base of a dam is wider at the bottom than the top because that is where the greatest pressure is
2. the pressure in water increases with increase in depth of water
3. the pressure in water acts only in a downward directions
4. the deeper a diver goes to examine the dam wall, the more nitrogen from the air supply dissolves in the blood
Which statement is NOT true ? [9L-76]
1. the base of a dam is wider at the bottom than the top because that is where the greatest pressure is
2. the pressure in water increases with increase in depth of water
3. the pressure in water acts in all directions
4. the deeper a diver goes to examine the dam wall, the less nitrogen from the air supply dissolves in the blood
Which word matches the phrase can be readily reduced in volume under pressure? [9L-7]
1. compressible
2. incompressible
3. pneumatic
4. hydraulic
Which word matches the phrase cannot be readily reduced in volume under pressure? [9L-78]
1. compressible
2. incompressible
3. pneumatic
4. hydraulic
Which word matches the phrase a device that uses compressed air? [9L-79]
1. compressible
2. incompressible
3. pneumatic
4. hydraulic
Which word matches the phrase a device that works off pressure transmitted through a liquid in a pipe or cylinder? [9L-80]
1. compressible
2. incompressible
3. pneumatic
4. hydraulic
Which is NOT true about the function and nutrition of your bone and muscle system? [9L-81]
1. to raise your arm the biceps contract and the triceps contract
2. to lower or straighten your arm the biceps relax and the triceps contract
3. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
4. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which is NOT true about the function and nutrition of your bone and muscle system? [9L-82]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps contract and the triceps contract
3. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
4. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which is NOT true about the function and nutrition of your bone and muscle system? [9L-83]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps relax and the triceps contract
3. cartilage is a harder material between the bones of a joint and reduces friction that would cause pain and wear
4. cartilage is a harder material between the bones of a joint and acts as a binding agent to minimise the chance of fracture damage
Which is NOT true about the function and nutrition of your bone and muscle system? [9L-84]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps relax and the triceps contract
3. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
4. cartilage is a harder material between the bones of a joint and increases friction to reduce pain and wear
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase your arm acting to lift an object? [9L-85]
1. a lever
2. a pivot point or fulcrum
3. a moment
4. a force
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase the point where the humerus and ulna bones are linked? [9L-86]
1. a lever
2. a pivot point or fulcrum
3. a moment
4. a force
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase the weight of a lifted object x the length of your arm? [9L-87]
1. a lever
2. a pivot point or fulcrum
3. a moment
4. a force
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase the unit of any weight you lift? [9L-88]
1. a lever
2. a force
3. a moment
4. a newton
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word best matches the phrase produced by any push or pull of your arm? [9L-89]
1. a force
2. a lever
3. a moment
4. a newton
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the units of the effect of a turning force? (e.g. as you bend your arm to lift something) [9L-90]
1. a lever
2. a newton metre
3. a moment
4. a newton

child	Joe	Mary	Fred	Sally	Mike
weight (N)	380	390	400	380	370

child	Joe	Mary	Fred	Sally	Mike
weight (N)	380	390	400	380	370

child	Joe	Mary	Fred	Sally	Mike
weight (N)	380	390	400	380	370

child	Joe	Mary	Fred	Sally	Mike
weight (N)	380	390	400	380	370

KS3 Science-Physics Quiz on "PRESSURE and MOMENTS" (based on QCA 9L)

CLICK on [?] and read any feedback. EMAIL query?comment AND quote Q database number [9L-xx] (16-09-07)