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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#1. Are most light waves visible to the human eye?
#2. Is weight a vector or a scalar?
#3. What is frequency?
#4. In transverse waves are the vibrations parallel or at right angles to the direction of wave travel?
#5. Which of the following is a disadvantage of solar panels?
#6. What is the function of a variable resistor?
#7. Complete the sentence: Reaction time is the time between a ……. being detected and a ……..
#8. Copper is a magnetic material – true or false?
#9. What is the purpose of the live wire in a plug?
#10. What is this component?
#11. What is an alpha particle?
#12. What wavelength of the electromagnetic spectrum is useful for thermal imaging?
#13. Which of the following best describes energy?
#14. True or false – x-rays have longer wavelengths than visible light?
#15. This image shows Flemming’s Left Hand Rule. Which of the following answers are the correct interpretations of the rule? ? Select three answers, one for each finger
#16. Which layer of the Earth’s atmosphere absorbs ultraviolet light?
#17. Calculate the force when an object changes its momentum by 2550 kg m/s in 5 seconds. Include the units for force in your answer.
#18. A train is travelling at 45 miles per hour. The driver puts on the brakes in order to stop at the station. Where is the kinetic energy of the train being transferred to?
#19. 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
#20. Is geothermal renewable?
#21. What is this component?
#22. What is Newton’s Second Law of Motion?
#23. Using the equation: Efficiency = useful energy/total energy, calculate the efficiency in the following scenario. Useful energy = 55 J, Total energy = 100 J. Answer to 2dp.
#24. Magnets have north and south poles – if two south poles are put close together what will happen?
#25. Conventional current goes from:
#26. Which of the following equations correctly describes the relationship between force and change in momentum (Newton’s Second Law)
#27. 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?
#28. 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
#29. A student sets up a series circuit that has two filament lamps, a power source and a switch after the first lamp. Can the first lamp be turned off whilst keeping the second lamp on?
#30. With electromagnetism the direction of the current depends on which of the following?
#31. What wavelength of the electromagnetic spectrum does a radiator glow at?
#32. What is the shortest wavelength of electromagnetic radiation
#33. Nickel is a magnetic material – true or false?
#34. 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?
#35. What wavelength of the electromagnetic spectrum has the most energy?
#36. Overexposure to ultraviolet light could cause which of the following problems?
#37. Which form of radiation is most ionising?
#38. What is the function of a diode?
#39. Which process transfers heat through vibrations between particles?
#40. The gravitational field strength is higher on Earth than on the Moon. How does an astronaut’s weight change when they go from the Earth to the Moon?
#41. What is this component?
#42. Is nuclear fission a fossil fuel?
#43. 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.
#44. Magnesium is a magnetic material – true or false?
#45. What do we call energy that is stored inside atoms?
#46. 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.
#47. Is momentum a vector or a scalar?
#48. Wave speed is linked to wave frequency and wavelength by which equation?
#49. Complete the sentence: …………. is a tendency of an object to keep moving or how hard it is to stop an object from moving.
#50. Which factors does the angle of refraction depend on?
Select all that apply:
#51. Which of the following are ways that a magnetic field of an electromagnet can be made stronger?
Select all that apply:
#52. How is gravitational potential energy stored?
#53. Which of the following factors can make reaction times longer?
Select all that apply:
#54. What is happening to the speed of the object in the graph between 0 and 8 seconds?
#55. What is amplitude?
#56. Is this a parallel or series circuit?
#57. Calculate the overall distance travelled by the object in the graph.
#58. Complete the equation for power. Power (W) = work done (J) / ……..
#59. What is the force acting on a conductor carrying current at right angles to a magnetic field when: magnetic flux density = 0.005 T , current = 3 A and length of wire = 150m?
#60. Fill in the blank – Thermal conductivity is the ability of a material to conduct or pass on heat through …….. with another material?
#61. Is oil a fossil fuel?
#62. What is the longest wavelength of visible light
#63. Which of these is an example of transverse waves?
#64. Which of the following is the equation for change in gravitational potential energy?
#65. Which of the following statements is correct?
#66. What is an isotope?
#67. Do radio waves have longer wavelengths than microwaves?
#68. Complete the sentence: In the UK the domestic electricity supply has a frequency of … Hz and is about ….. V.
#69. If a current travelling along a wire changes direction, does the magnetic field also change direction?
#70. What is Newton’s First Law of Motion?
#71. 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
#72. A coil of wire with current flowing through it is an electromagnet. What else do we call a coil of wire?
#73. What wavelength of the electromagnetic spectrum is useful for security marking?
#74. Renewable energy resources mostly get their energy from the same source what is this source?
1
#75. A bar magnet is a permanent magnet – what does that mean?
#76. Which form of radiation is moderately ionising?
#77. What are the units we use for measuring energy?
#78. Do ultraviolet rays have longer wavelengths than infrared waves?
#79. Is this a parallel or series circuit?
#80. Steel is a magnetic material – true or false?
#81. What do we call energy that is stored in twisted or stretched materials?
#82. True or false – electromagnetic waves cannot travel through water?
#83. Which of the following is a difference between circuit breakers and fuses?
#84. What is the longest wavelength of electromagnetic radiation
#85. Does a current flow if there is no source of potential difference?
#86. What is the function of an LED?
#87. True or false – microwave radiation at certain frequencies could cause the internal heating of cells in our bodies?
#88. 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
#89. What is the source of energy for the sun?
#90. What is the function of a resistor?
#91. Are electromagnetic waves transverse or longitudinal?
