Mock test. 1 hour and 45 minutes. 75 marks available.
Each time the test is taken it will present different questions.
GCSE OCR Combined Science B Papers 1 and 5
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#1. Growth is increased during puberty. Why is this?
#2. Why does graphite conduct electricity?
#3. A soluble base is called?
#4. Energy can be transferred to useful and non-useful forms. Which of the following are non-useful transfers of energy?
Select all that apply:
#5. What is the word equation for photosynthesis? ? In some examples you might also see sunlight and chlorophyll above and below the arrow.
#6. Which type of reaction transfers energy to the surroundings?
#7. What is a polymer?
#8. Which of the following are uses for paper chromatography?
Select all that apply:
#9. Where does blood from the aorta travel to?
#10. What is the function of a resistor?
#11. What do we call energy that is stored in chemicals?
#12. How do most plants get their nitrogen?
#13. Where does the water in lakes and rivers end up?
#14. Is speed a vector or a scalar?
#15. Acids produce an excess of what when they dissolve in water?
#16. Which of the following organisms belong to the kingdom - animals?
Select all that apply:
#17. Surface area to volume ratio affects rate of reaction. Why is that the case?
#18. What is the binomial name for humans?
#19. If a car is moving but the forces are balanced - what will happen to the speed of the car?
#20. The pacemaker cells tell the heart when to beat, where are they located?
#21. Complete the following equation describing a reaction with a metal and an acid: metal + acid → .... + ....
Select all that apply:
#22. True or false - volcanism removes carbon from the atmosphere
#23. What is the chemical symbol for calcium?
#24. Is this a parallel or series circuit?
#25. What are substrates?
#26. What is the role of protease?
#27. When is adrenaline released?
#28. Which form of radiation is moderately ionising?
#29. What is the resolution of light microscopes limited by?
#30. Filtration and crystallisation are used to separate which types of materials?
#31. Which of the following is the correct equation for density?
#32. Finish the sentence: Nitrogen compounds found in artificial fertilisers are ......... and dissolve in the soil's water.
#33. 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?
#34. What is the charge of an electron?
#35. Which human activities cause increases in the greenhouse gases - carbon dioxide and methane?
Select all that apply:
#36. Why did the amount of oxygen in the atmosphere increase over time?
#37. Which evidence provides information about carbon dioxide concentration and global temperatures?
#38. Fill in the blanks: Oxidation refers to the ...... of electrons and it occurs at the ........
#39. Which of the following descriptions matches the Mᵣ of a compound?
#40. What are negative ions called?
#41. How do we describe the periodic changes in population size of predators and prey - explained by increases in numbers of predators due to increased numbers of prey and then decreasing numbers of prey due to increasing numbers of predators and so on?
#42. Which of the following is a disadvantage of wind energy generation?
#43. Is coal a fossil fuel?
#44. Calculate the acceleration of an object which has the following characteristics. Use the following equation v² − u² = 2 a x. Final velocity = 50m/s, Initial velocity 0m/s, Distance travelled = 350m
Rearrange the equation to the following and then substitute in the correct values:
a = v² – u²
2 x
Where:
a = acceleration
v² = final velocity squared
u² = initial velocity squared
x = distance
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#45. What is the chemical symbol for gold?
#46. What is the longest wavelength of electromagnetic radiation
#47. If a car experiences a resultant force in the forwards direction, what will happen to the motion of the car?
#48. In aqueous solutions such as sodium chloride solution, there will be negatively charged ions from the salt (Cl⁻) as well as hydroxide ions (OH⁻). What is the rule that determines which will be discharged at the anode.
#49. Which of the following examples matches the composition of Earth's early atmosphere?
#50. Anaerobic respiration does not involve oxygen. Select the correct word equation for anaerobic respiration.
#51. What is the role of lipase?
#52. Why is it dangerous to connect a live and earth wire?
#53. Which device can you use to find the direction of a magnetic field?
#54. Do radio waves have longer wavelengths than microwaves?
#55. Magnets have north and south poles - if two north poles are put close together what will happen?
#56. Specialised cells have different compositions of sub cellular structures in order to perform their role. Why would specialised cells have lots of mitochondria?
#57. How many chromosomes does a single sperm cell have?
#58. Which of these is a habitat?
#59. What natural source of nitrogen is sometimes added to fields by farmers?
#60. Fill in the gap. Metal atoms bond forming a giant ......... of ions.
#61. In transverse waves are the vibrations parallel or at right angles to the direction of wave travel?
#62. In which sub-cellular structure inside plant cells does photosynthesis occur?
#63. What is the chemical symbol for fluorine?
#64. 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
#65. What do we call energy that is stored inside atoms?
#66. The force on a conductor carrying current at right angles to a magnetic field is expressed by which of the following equations?
#67. Which of the following is the source of oil and gas?
#68. By which process does water in the clouds move onto land?
#69. What is the source of energy for the sun?
#70. What is the purpose of the live wire in a plug?
#71. Why did the concentration of carbon dioxide in the atmosphere decrease after the oceans formed?
#72. What is stroke volume?
#73. Are most light waves visible to the human eye?
#74. In which type of reaction would the temperature of a solution increase?
#75. Which process transfers heat through vibrations between particles?
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