Robert Brooks

Leading Practitioner

Possible Edexcel P2 6 Mark Higher Tier Questions

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Possible Edexcel P2 6 Mark Higher Tier Questions – get students to practise these! These are based on the specification.
1.2 Explain how an insulator can be charged by friction, through the transfer of electrons
1.3 Explain how the material gaining electrons becomes negatively charged and the material losing electrons is left with an equal positive charge
1.6 Explain how earthing removes excess charge by movement of electrons
1.7 Explain some of the uses of electrostatic charges in everyday situations, including paint and insecticide sprayers
1.8 Demonstrate an understanding of some of the dangers of electrostatic charges in everyday situations, including fuelling aircraft and tankers together with the use of earthing to prevent the build-up of charge and danger arising
HIGHER 2.5 Demonstrate an understanding that potential difference voltage) is the energy transferred per unit charge passed and hence that the volt is a joule per coulomb
2.12 Explain why, when there is an electric current in a resistor, there is an energy transfer which heats the resistor
HIGHER 2.13 Explain the energy transfer (in 2.12 above) as the result of collisions between electrons and the ions in the lattice
2.14 Distinguish between the advantages and disadvantages of the heating effect of an electric current
4.2 Demonstrate an understanding of the factors affecting the stopping distance of a vehicle, including:
a) the mass of the vehicle
b) the speed of the vehicle
c) the driver’s reaction time
d) the state of the vehicle’s brakes
e) the state of the road
f) the amount of friction between the tyre and the road surface
4.6 Demonstrate an understanding of the idea of linear momentum conservation
4.7 Demonstrate an understanding of the idea of rate of change of momentum to explain protective features including bubble wraps, seat belts, crumple zones and air bags
5.7 Explain how the fission of U-235 produces two daughter nuclei and two or more neutrons, accompanied by a release of energy
5.8 Explain the principle of a controlled nuclear chain reaction
5.9 Explain how the chain reaction is controlled in a nuclear reactor including the action of moderators and control rods
5.10 Describe how thermal (heat) energy from the chain reaction is converted into electrical energy in a nuclear power station
5.12 Describe nuclear fusion as the creation of larger nuclei from smaller nuclei, accompanied by a release of energy and recognise fusion as the energy source for stars
5.13 Explain the difference between nuclear fusion and nuclear fission
HIGHER 5.14 Explain why nuclear fusion does not happen at low temperatures and pressures, due to electrostatic repulsion of protons
HIGHER 5.15 Relate the conditions for fusion to the difficulty of making a practical and economic form of power station
6.9 Demonstrate an understanding of the dangers of ionising radiation in terms of tissue damage and possible mutations and relate this to the precautions needed.
6.10 Describe how scientists have changed their ideas of radioactivity over time, including: a the awareness of the hazards associated with radioactive sources b why the scientific ideas change over time
6.11 Discuss the long-term possibilities for storage and disposal of nuclear waste
6.12 Evaluate the advantages and disadvantages of nuclear power for generating electricity, including the lack of carbon dioxide emissions, risks, public perception, waste disposal and safety issues

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