OCR Combined Science A Papers 6 and 12 Automock

#1. Is coal renewable?

no

partially

yes

#2. Which of the following is a disadvantage of tidal energy generation?

the tides are predictable

salt-water is corrosive

there is not enough energy in the tides to produce electricity

#3. Do radio waves have longer wavelengths than microwaves?

Yes

No

#4. Calculate the momentum of a vehicle with a mass of 1500kg and a velocity of 35m/s. Add the units “kg m/s” after your answer ? momentum equation is available in the description below the quiz

#5. What are positrons?

high frequency electromagnetic radiation

an antimatter particle equivalent to an electron

two protons and two neutrons but no electrons

an electron

#6. Is hydroelectric renewable?

yes

no

partially

#7. All objects emit energy in a certain wavelength. What is this wavelength known as?

#8. The equation for work done is E = F x d. Calculate the distance moved when a 650 J of work is done to move a 160 N object. Leave your answer to 1 d.p and include the units. ? Do not include your workings in your answer

#9. What is wavelength?

the time taken for a full oscillation

the maximum displacement of a wave

the distance of one entire oscillation

how far from the equilibrium point the wave has oscillated

the number of waves passing a point each second

#10. Calculate the forces involved in an accident where a 1650 kg car travelling at 20 m/s hits a wall and the car comes to a stop in 0.05 seconds. Use the following equation: Force = mass x final velocity – mass x initial velocity / t (include units in your answer)

#11. Is tidal power renewable?

no

partially

yes

#12. Complete the sentence: Reaction time is the time between a ……. being detected and a ……..

Response, stimulus

Reaction, stimulus

Interaction, action

Stimulus, response

#13. Complete the sentence: Stopping distances are made up of the sum of braking distance and …….. distance.

#14. Is nuclear fission a fossil fuel?

yes

partially

no

#15. How is fossil fuel usage changing as a percentage of total energy production worldwide?

rising

staying the same

falling

#16. Which form of radiation is least ionising?

alpha particles

beta particles

gamma rays

#17. Which process fits the description? The warmer parts of a fluid rise and set up a current.

Conduction

Radiation

Induction

Convection

2

#18. Is coal a fossil fuel?

yes

no

partially

#19. Complete the sentence: …………. is a tendency of an object to keep moving or how hard it is to stop an object from moving.

Inertia

Momentum

Velocity

Elastic potential energy

#20. Is nuclear fusion renewable?

yes but not currently feasible

partially

no

#21. What wavelength of the electromagnetic spectrum is useful for sterilising food and medical equipment?

microwaves

gamma rays

x-rays

infrared

visible light

ultraviolet light

radiowaves

#22. What are fossil fuels?

decomposed - crushed and heated organisms from millions of years ago

normal soil which is burned at a very high temperature

living plants that are burned

#23. What is the source of energy for the sun?

nuclear fusion

nuclear fission

hydrocarbons

#24. Why is geothermal energy not used more often around the world?

the amount of energy that is received is too low to make it economically viable

very hot rocks and soil are needed to heat water - occurs only in areas of volcanism

the technology is extremely complex and therefore too expensive for most countries

#25. Switches are both a functional and a safety component of a circuit. Complete the sentence: When switches are closed, no …….. flows around a circuit.

#26. Is natural gas a fossil fuel?

no

partially

yes

#27. Is nuclear fission renewable?

yes

no

partially

#28. Complete the sentence: different substances may absorb, transmit, refract or reflect electromagnetic waves in ways that vary with …….

wavelength

amplitude

displacement

#29. Which of the following are reasons why hydroelectric dams are problematic?

Select all that apply:

alters the flow of sediment on a river

can flood villages or important ecosystems

stops migrations of fish

they produce a very reliable amount of energy on demand

stops navigation by boats

#30. An electric motor does 70,000 J of work in 200 s. Calculate the Power of this action. Include the units and answer to 1d.p ? Do not include your workings in your answer

#31. Which of the following are problems with using biofuels as a replacement for oil?

Select all that apply:

they have high energy density

they have low energy density

they often replace forests that are cut down to produce biofuels

they need land to grow and compete with agriculture for food production

they consume fossil fuels when they are planted, harvested, shipped and burned

#32. How can you reduce the effect of friction in the chain on a bicycle?

Insulation

Lubrication

Progestration

#33. Which process transfers heat through vibrations between particles?

Radiation

Conduction

Convection

Induction

#34. Kate and Emma both walk up 10 stairs, moving 4.5m higher than before. Emma does this in 2.7 seconds, Kate does this in 3.2 seconds. Which girl has exerted the most power?

Emma

Kate

#35. What is an electrical fault?

When an appliance breaks down and need to be repaired

When the live wire touches a metal part (casing) of an appliance or plug

When a fuse has reached its expiry and needs to be replaced

#36. Are biofuels renewable?

yes

no

partially

#37. Our eyes can detect certain frequencies of light, what do we call these frequencies?

infrared light

ultraviolet light

visible light

#38. Which of the following is the source of coal?

dead and buried plant material from millions of years ago

dead plankton from millions of years ago

nuclear decay from millions of years ago

#39. True or false – x-rays have longer wavelengths than visible light?

false

true

#40. Is natural gas renewable?

no

yes

partially

#41. Which form of radiation is most ionising?

alpha particles

gamma rays

beta particles

#42. Is oil a fossil fuel?

partially

no

yes

#43. How do crumple zones and airbags in cars protect people inside the car in a crash?

Reducing the size of the deceleration and the forces experienced by the body

Pushing the driver into the seat so they are safe from flying glass

Making the crash louder, attracting attention so emergency services arrive sooner

#44. Is this statement correct? When measuring momentum, if two objects are travelling in opposite directions, one object will be given a negative momentum (e.g. – 250 kg m/s).

Yes

No

#45. Are most light waves visible to the human eye?

Different wavelengths of light such as microwaves can be seen by humans in certain conditions

Yes - most of the are visible

No - most of them are invisible

#46. What is gamma radiation?

two protons and two neutrons but no electrons

two neutrons without any protons

high frequency electromagnetic radiation

an electron

#47. Which of the following factors can make reaction times longer?

Select all that apply:

Distractions

Paying close attention to the road

Drugs/alcohol

Tiredness of the driver

#48. Which layer of the Earth’s atmosphere absorbs ultraviolet light?

magnetosphere

ozone layer

troposphere

stratosphere

#49. Which component is described: A glass tube with a thin wire inside that melts if too much current passes through it, breaking the circuit.

A fuse

A circuit breaker

An earth wire

#50. True or false – microwave radiation at certain frequencies could cause the internal heating of cells in our bodies?

true

false

#51. What is displacement?

the number of waves passing a point each second

the distance of one entire oscillation

the maximum displacement of a wave

how far from the equilibrium point the wave has oscillated

the time taken for a full oscillation

#52. When objects with motion collide, the total momentum will be the same after the collision as before the collision. There is no change in overall momentum. What do we call this Law of Physics?

Conservation of energy

Conservation of thermal energy

Conservation of momentum

Conservation of mass

#53. Complete the equation for power. Power (W) = work done (J) / ……..

distance (m)

time taken (s)

weight (N)

#54. Which of the following equations correctly describes the relationship between force and change in momentum (Newton’s Second Law)

Force (N) = time (s) / change in momentum (kg m/s) [F = t / (mv − mu)]

Force (N) = change in momentum (kg m/s) x time (s) [F = (mv − mu) x t]

Force (N) = change in momentum (kg m/s) / time (s) x velocity (m/s) [F = (mv − mu) / t x v]

#55. How can electrons change orbits?

randomly changing orbits

being struck by a proton

by absorbing electromagnetic radiation

#56. What wavelength of the electromagnetic spectrum have the most energy?

visible light

gamma rays

radiowaves

microwaves

infrared

x-rays

ultraviolet light

#57. What do we use to slow the rate of heat loss out of a house?

Isolation

Insulation

Exulation

Transpiration

#58. Which of the following is a disadvantage of wind energy generation?

wind turbines are intermittent

wind turbines can occasionally cause earthquakes

wind turbines are prone to falling over in high winds

#59. What is frequency?

the number of waves passing a point each second

the time taken for a full oscillation

the maximum displacement of a wave

the distance of one entire oscillation

how far from the equilibrium point the wave has oscillated

#60. Is geothermal renewable?

yes

no

partially

GCSE OCR Combined Science A Papers 6 and 12

Results

#1. Is coal renewable?

#2. Which of the following is a disadvantage of tidal energy generation?

#3. Do radio waves have longer wavelengths than microwaves?

#4. Calculate the momentum of a vehicle with a mass of 1500kg and a velocity of 35m/s. Add the units “kg m/s” after your answer ? momentum equation is available in the description below the quiz

#5. What are positrons?

#6. Is hydroelectric renewable?

#7. All objects emit energy in a certain wavelength. What is this wavelength known as?

#8. The equation for work done is E = F x d. Calculate the distance moved when a 650 J of work is done to move a 160 N object. Leave your answer to 1 d.p and include the units. ? Do not include your workings in your answer

#9. What is wavelength?

#10. Calculate the forces involved in an accident where a 1650 kg car travelling at 20 m/s hits a wall and the car comes to a stop in 0.05 seconds. Use the following equation: Force = mass x final velocity – mass x initial velocity / t (include units in your answer)

#11. Is tidal power renewable?

#12. Complete the sentence: Reaction time is the time between a ……. being detected and a ……..

#13. Complete the sentence: Stopping distances are made up of the sum of braking distance and …….. distance.

#14. Is nuclear fission a fossil fuel?

#15. How is fossil fuel usage changing as a percentage of total energy production worldwide?

#16. Which form of radiation is least ionising?

#17. Which process fits the description? The warmer parts of a fluid rise and set up a current.

#18. Is coal a fossil fuel?

#19. Complete the sentence: …………. is a tendency of an object to keep moving or how hard it is to stop an object from moving.

#20. Is nuclear fusion renewable?

#21. What wavelength of the electromagnetic spectrum is useful for sterilising food and medical equipment?

#22. What are fossil fuels?

#23. What is the source of energy for the sun?

#24. Why is geothermal energy not used more often around the world?

#25. Switches are both a functional and a safety component of a circuit. Complete the sentence: When switches are closed, no …….. flows around a circuit.

#26. Is natural gas a fossil fuel?

#27. Is nuclear fission renewable?

#28. Complete the sentence: different substances may absorb, transmit, refract or reflect electromagnetic waves in ways that vary with …….

#29. Which of the following are reasons why hydroelectric dams are problematic?

#30. An electric motor does 70,000 J of work in 200 s. Calculate the Power of this action. Include the units and answer to 1d.p ? Do not include your workings in your answer

#31. Which of the following are problems with using biofuels as a replacement for oil?

#32. How can you reduce the effect of friction in the chain on a bicycle?

#33. Which process transfers heat through vibrations between particles?

#34. Kate and Emma both walk up 10 stairs, moving 4.5m higher than before. Emma does this in 2.7 seconds, Kate does this in 3.2 seconds. Which girl has exerted the most power?

#35. What is an electrical fault?

#36. Are biofuels renewable?

#37. Our eyes can detect certain frequencies of light, what do we call these frequencies?

#38. Which of the following is the source of coal?

#39. True or false – x-rays have longer wavelengths than visible light?

#40. Is natural gas renewable?

#41. Which form of radiation is most ionising?

#42. Is oil a fossil fuel?

#43. How do crumple zones and airbags in cars protect people inside the car in a crash?

#44. Is this statement correct? When measuring momentum, if two objects are travelling in opposite directions, one object will be given a negative momentum (e.g. – 250 kg m/s).

#45. Are most light waves visible to the human eye?

#46. What is gamma radiation?

#47. Which of the following factors can make reaction times longer?

#48. Which layer of the Earth’s atmosphere absorbs ultraviolet light?

#49. Which component is described: A glass tube with a thin wire inside that melts if too much current passes through it, breaking the circuit.

#50. True or false – microwave radiation at certain frequencies could cause the internal heating of cells in our bodies?

#51. What is displacement?

#52. When objects with motion collide, the total momentum will be the same after the collision as before the collision. There is no change in overall momentum. What do we call this Law of Physics?

#53. Complete the equation for power. Power (W) = work done (J) / ……..

#54. Which of the following equations correctly describes the relationship between force and change in momentum (Newton’s Second Law)

#55. How can electrons change orbits?

#56. What wavelength of the electromagnetic spectrum have the most energy?

#57. What do we use to slow the rate of heat loss out of a house?

#58. Which of the following is a disadvantage of wind energy generation?

#59. What is frequency?

#60. Is geothermal renewable?

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