Mock test. 1 hour and 45 minutes. 95 marks available.
Each time the test is taken it will present different questions.
GCSE OCR Combined Science B Papers 3 and 7
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Well Done you passed the test! You’re on your way to getting the grades you want!
Why not try another Science Mock Exam and see how well you do?
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#1. Which of the following equations correctly describes the relationship between force and change in momentum (Newton's Second Law)
#2. Does a circuit need to be closed for current to flow?
#3. Is geothermal renewable?
#4. What is happening to the speed of the object in the graph between 0 and 8 seconds?
#5. Complete the sentence: Reaction time is the time between a ....... being detected and a ........
#6. Which is the correct definition for non-renewable energy resources?
#7. Is nuclear fission renewable?
#8. Which descriptions are correct?
Select all that apply:
#9. What is the longest wavelength of visible light
#10. What is the function of a voltmeter?
#11. Complete the sentence: different substances may absorb, transmit, refract or reflect electromagnetic waves in ways that vary with .......
#12. Complete the equation for weight. W = m x ........
#13. A coil of wire with current flowing through it is an electromagnet. What else do we call a coil of wire?
#14. What wavelength of the electromagnetic spectrum is useful for communications?
#15. Is wind power renewable?
#16. A student sets up a parallel circuit with two lamps, two switches and a power source. Each lamp is on a separate route, with a switch placed before it. If one switch is turned off, will the lamp on the other route remain on?
#17. If a car is moving but the forces are balanced - what will happen to the speed of the car?
#18. Which of these is an example of transverse waves?
#19. What is this component?
#20. Which of the following is the equation for change in gravitational potential energy?
#21. What are positrons?
#22. 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
#23. What devices are used to determine the shape of a magnetic field?
#24. Calculate the change in height of the tennis ball in the following scenario. A ball weighs 0.15kg - the change in GPE is 100 J - the gravitational field strength is 10N/kg. Answer to 1dp and include units. ? If you do not know the GPE equation, it is listed below the quiz
#25. What wavelength of the electromagnetic spectrum is useful for photography?
#26. Steel is a magnetic material - true or false?
#27. Is oil renewable?
#28. Which process transfers heat through vibrations between particles?
#29. What is the function of a switch?
#30. Complete the sentence: ............. is a tendency of an object to keep moving or how hard it is to stop an object from moving.
#31. Why is it dangerous to connect a live and earth wire?
#32. Is this a parallel or series circuit?
#33. Which of the following are reasons why hydroelectric dams are problematic?
Select all that apply:
#34. Calculate the change in momentum of an object that experiences a force of 350 N over 15 s. Include the units "kg m/s" in your answer
#35. How can we upgrade our windows to reduce heat loss?
#36. True or False - Magnetic field lines that are far apart represent the strongest part of the field?
#37. What is an isotope?
#38. How is kinetic energy stored?
#39. Which of the following are uses for magnets?
Select all that apply:
#40. What do we use to slow the rate of heat loss out of a house?
#41. What is the shortest wavelength of electromagnetic radiation
#42. What is the purpose of the earth wire in a plug?
#43. What is a beta particle?
#44. What is an electrical fault?
#45. What is the rate of acceleration in freefall?
#46. How is renewable energy usage changing as a percentage of total energy production worldwide?
#47. 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).
#48. Calculate the distance travelled by the runner in the velocity/time graph.
The area under the graph = distance travelled
Split the graph into triangles and rectangles and calculate the areas. Then add together the areas.
Area of a rectangle = Length x Height
Area of a triangle = 1/2 x Length x Height
90m 120m 180m = 390m
NOTE: the graph starts at one second and not 0. Don’t be fooled, look at the axes carefully before attempting a question.
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#49. Which of the following devices do we use to measure weight? ? 2 answers
Select all that apply:
#50. 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?
#51. What is this component?
#52. What is this component?
#53. How is fossil fuel usage changing as a percentage of total energy production worldwide?
#54. Are ammeters connected in series or in parallel?
#55. How is gravitational potential energy stored?
#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. Which of the following is a difference between circuit breakers and fuses?
#58. What is the purpose of the neutral wire in a plug?
#59. Electrons are negatively charged, so they move to which terminal of a battery or cell?
#60. Energy can be transferred to useful and non-useful forms. Which of the following are non-useful transfers of energy?
Select all that apply:
#61. When a light wave enters glass or water from the air, does it refract towards or away from the normal line?
#62. The needles of plotting compasses are tiny magnets - they always point near the Earth's North Pole - why is this?
#63. Which of the following can affect braking distances? ? 5
Select all that apply:
#64. Which theory do we use to describe states of matter?
#65. Which component is described: A glass tube with a thin wire inside that melts if too much current passes through it, breaking the circuit.
#66. What is this component?
#67. In an equilibrium situation - the forces between two objects are?
#68. A car makes a journey to the shop and back. Calculate the overall displacement travelled by the car.
#69. Which of the following are ways that a magnetic field of an electromagnet can be made stronger?
Select all that apply:
#70. What do we call energy that is stored in chemicals?
#71. Is velocity a vector or a scalar?
#72. Waves that pass a boundary between two materials change speed and also change direction. What is this change of direction called?
#73. Cobalt is a magnetic material - true or false?
#74. An object with a mass of 5kg is 100m above the ground and has 35 J of gravitational potential energy. What will happen to the gravitational potential energy if the mass was increased to 10kg?
#75. What is the acceleration of an object that has an initial velocity of 10m/s and a final velocity of 50m/s. The object took 15s to accelerate to the final velocity.
Use the following equation:
a = (v − u)
t
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#76. When two magnets are placed alongside each other - what is the best way to describe the shape of the magnetic field they produce?
#77. How can you reduce the effect of friction in the chain on a bicycle?
#78. A bar magnet is a permanent magnet - what does that mean?
#79. An object with a mass of 5kg is raised to 100m above the ground and has 500 J of gravitational potential energy. What will happen to the gravitational potential energy if the mass was increased to 16.3kg? Calculate the change in GPE where the gravitational field strength is 1 N/kg. Include units. ? If you do not know the GPE equation, it is listed below the quiz
#80. Calculate the total momentum after two objects collide. Object A has a momentum of 20 kg m/s and Object B has a momentum of -15 kg m/s. Include the units "kg m/s" in your answer.
#81. 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)
#82. What is an alpha particle?
#83. What is this component?
#84. Do radio waves have longer wavelengths than microwaves?
#85. What is the function of a variable resistor?
#86. Magnets have north and south poles - if two north poles are put close together what will happen?
#87. 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
#88. Switches are both a functional and a safety component of a circuit. Complete the sentence: When switches are closed, no ........ flows around a circuit.
#89. Is time a vector or a scalar?
#90. Determine the speed of the object between 1 and 3 seconds. ? answer to 2 decimal places
#91. What is this component?
#92. What is period?
#93. What is the purpose of fuses and circuit breakers?
#94. What is the function of an ammeter?
#95. Is this a parallel or series circuit?
finish
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