OCR Combined Science A Papers 6 and 12 Automock

#1. Which of the following is the source of oil and gas?

dead plankton from millions of years ago

dead and buried plant material from millions of years ago

nuclear decay from millions of years ago

#2. Cavity walls are often used to reduce heat loss through walls – why is this effective?

The gap between the two layers prevents conduction

The gap between the two walls creates a barrier to stop radiation

#3. Is geothermal renewable?

no

partially

yes

#4. Jack moves a cube weighing 250N. He moves the cube by 2.5m in a straight line. Calculate the work done by Jack. Answers to 1d.p, include the units. ? Do not include your workings in your answer

#5. 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

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

Progestration

Lubrication

Insulation

#7. Is natural gas a fossil fuel?

partially

yes

no

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

Select all that apply:

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 have high energy density

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

#9. What is amplitude?

how far from the equilibrium point the wave has oscillated

the number of waves passing a point each second

the time taken for a full oscillation

the distance of one entire oscillation

the maximum displacement of a wave

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

Yes

No

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

Response, stimulus

Stimulus, response

Interaction, action

Reaction, stimulus

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

#13. What is gamma radiation?

an electron

high frequency electromagnetic radiation

two neutrons without any protons

two protons and two neutrons but no electrons

#14. 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

#15. Is tidal power renewable?

no

partially

yes

#16. Is nuclear fission renewable?

yes

no

partially

#17. What wavelength of the electromagnetic spectrum does a radiator glow at?

radiowaves

visible light

x-rays

infrared

gamma rays

microwaves

ultraviolet light

#18. Which of the following can be used to measure reaction times?

Select all that apply:

Thermometers

Newton meters

Computer programmes

Electric circuits

#19. Is solar power renewable?

partially

no

yes

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

Convection

Induction

Conduction

Radiation

#21. What is the shortest wavelength of electromagnetic radiation

microwaves

x-rays

ultraviolet light

radiowaves

infrared

gamma rays

visible light

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

displacement

amplitude

wavelength

#23. True or false – x-rays and gamma rays can cause DNA mutations or damage to cells in the body?

true

false

#24. Is oil renewable?

no

yes

partially

#25. Which of the following is a disadvantage of solar panels?

they are more expensive than nuclear fission

they are an intermittent electricity source

it is always sunny at the equator

#26. How can we upgrade our windows to reduce heat loss?

Replace with electrostatically repulsive glass

Upgrade to double or triple glazing

#27. The potential danger associated with an electromagnetic wave increases with?

decreasing frequency

increasing frequency

#28. Which of the following can affect braking distances? ? 5

Select all that apply:

State of the brakes

Speed of the vehicle

Mass of the vehicle

State of the road surface

Drugs/alcohol

Distractions

Weather conditions

#29. What is an alpha particle?

high frequency electromagnetic radiation

two protons and two neutrons but no electrons

two neutrons without any protons

an electron

#30. What does F represent in the equation for work done?

Force

Energy

Power

Distance

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

Induction

Radiation

Convection

Conduction

2

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

true

false

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

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

infrared

radiowaves

gamma rays

ultraviolet light

microwaves

x-rays

visible light

#35. What is the purpose of the earth wire in a plug?

Provides an alternative (low resistance) path for the current in the case of a fault

Provides a return path to the power supply from the appliance

Connects the appliance to the power supply

#36. What is an electrical fault?

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

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

When an appliance breaks down and need to be repaired

#37. What wavelength of the electromagnetic spectrum is useful for cooking?

visible light

gamma rays

x-rays

ultraviolet light

infrared

#38. Wave speed is linked to wave frequency and wavelength by which equation?

v = f x a x λ

v = f / λ

v = f x λ

#39. Which of the following is a difference between circuit breakers and fuses?

Fuses are multi-use, circuit breakers are single-use

Fuses are single-use, circuit breakers are multi-use

Fuses are more effective than circuit breakers

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

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

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

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

#41. How can electrons change orbits?

randomly changing orbits

being struck by a proton

by absorbing electromagnetic radiation

#42. How is renewable energy usage changing as a percentage of total energy production worldwide?

rising

falling

staying the same

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

Select all that apply:

Paying close attention to the road

Tiredness of the driver

Distractions

Drugs/alcohol

#44. In longitudinal waves are the vibrations parallel or at right angles to the direction of wave travel?

right angles

parallel

#45. Is natural gas renewable?

yes

no

partially

#46. What are fossil fuels?

normal soil which is burned at a very high temperature

decomposed - crushed and heated organisms from millions of years ago

living plants that are burned

#47. Which of the following best describes energy?

Energy is the ability to do work - make things change

Energy is the rate at which electricity is transferred

Energy is the force we use to measure how far things move

#48. What wavelength of the electromagnetic spectrum is useful for photography?

radiowaves

visible light

microwaves

gamma rays

infrared

x-rays

ultraviolet light

#49. Which of these is an example of transverse waves?

seismic S waves

ripples on the surface of water

seismic P waves

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

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

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

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

#51. What is the purpose of the live wire in a plug?

Provides a return path to the power supply from the appliance

Provides an alternative (low resistance) path for the current in the case of a fault

Connects the appliance to the power supply

#52. Which of the following is a disadvantage of nuclear fission?

it produces only small amounts of energy

it is very complex and expensive

it is not currently commercially viable

#53. Which of the following is an advantage of using nuclear fission power plants?

They do not produce air pollution or greenhouse gases

They are cheap to manufacture and operate

They are very simple technologies

#54. True or false – electromagnetic waves travel at different speeds in different materials?

True

False

#55. Which of the following is a disadvantage of fossil fuels?

they are simple technologies

they produce air pollution

they are cheap

#56. Calculate the mass of a vehicle with a momentum of 42000 kg m/s and a velocity of 25 m/s. Include the units in your answer. ? momentum equation is available in the description below the quiz

1680 kilogrammes

1680 k g

1680

1700 kg

1680 kilos

1680 kilograms

1680kg

1680kilos

1680 kg

1680kilograms

#57. 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).

No

Yes

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

infrared light

visible light

ultraviolet light

#59. Which of the following is an advantage of crude oil?

crude oil does not produce greenhouse gases when burned

crude oil does not produce air pollution when burned

crude oil can be easily transported through pipes

#60. Which form of radiation is moderately ionising?

alpha particles

gamma rays

beta particles

GCSE OCR Combined Science A Papers 6 and 12

Good Luck!

Results

#1. Which of the following is the source of oil and gas?

#2. Cavity walls are often used to reduce heat loss through walls – why is this effective?

#3. Is geothermal renewable?

#4. Jack moves a cube weighing 250N. He moves the cube by 2.5m in a straight line. Calculate the work done by Jack. Answers to 1d.p, include the units. ? Do not include your workings in your answer

#5. 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?

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

#7. Is natural gas a fossil fuel?

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

#9. What is amplitude?

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

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

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

#13. What is gamma radiation?

#14. 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

#15. Is tidal power renewable?

#16. Is nuclear fission renewable?

#17. What wavelength of the electromagnetic spectrum does a radiator glow at?

#18. Which of the following can be used to measure reaction times?

#19. Is solar power renewable?

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

#21. What is the shortest wavelength of electromagnetic radiation

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

#23. True or false – x-rays and gamma rays can cause DNA mutations or damage to cells in the body?

#24. Is oil renewable?

#25. Which of the following is a disadvantage of solar panels?

#26. How can we upgrade our windows to reduce heat loss?

#27. The potential danger associated with an electromagnetic wave increases with?

#28. Which of the following can affect braking distances? ? 5

#29. What is an alpha particle?

#30. What does F represent in the equation for work done?

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

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

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

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

#35. What is the purpose of the earth wire in a plug?

#36. What is an electrical fault?

#37. What wavelength of the electromagnetic spectrum is useful for cooking?

#38. Wave speed is linked to wave frequency and wavelength by which equation?

#39. Which of the following is a difference between circuit breakers and fuses?

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

#41. How can electrons change orbits?

#42. How is renewable energy usage changing as a percentage of total energy production worldwide?

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

#44. In longitudinal waves are the vibrations parallel or at right angles to the direction of wave travel?

#45. Is natural gas renewable?

#46. What are fossil fuels?

#47. Which of the following best describes energy?

#48. What wavelength of the electromagnetic spectrum is useful for photography?

#49. Which of these is an example of transverse waves?

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

#51. What is the purpose of the live wire in a plug?

#52. Which of the following is a disadvantage of nuclear fission?

#53. Which of the following is an advantage of using nuclear fission power plants?

#54. True or false – electromagnetic waves travel at different speeds in different materials?

#55. Which of the following is a disadvantage of fossil fuels?

#56. Calculate the mass of a vehicle with a momentum of 42000 kg m/s and a velocity of 25 m/s. Include the units in your answer. ? momentum equation is available in the description below the quiz

#57. 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).

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

#59. Which of the following is an advantage of crude oil?

#60. Which form of radiation is moderately ionising?

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