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Sample exam questions - electricity - OCR GatewaySix-mark questions

Understanding how to approach exam questions helps boost exam performance. Questions will include multiple choice, descriptions and explanations, using mathematical skills and extended writing.

Part of Physics (Single Science)Electricity

Six-mark questions

Six-mark questions are extended open response questions. These require longer answers than the structured questions with fewer marks. It is wise to plan your answer rather than rushing straight into it, otherwise you may stray away from the key points.

Six-mark questions are marked using a levels-based mark scheme because they are open ended. To gain full marks, you need to:

  • support explanations using scientific knowledge and understanding
  • use appropriate scientific words and terms
  • write clearly, linking ideas in a logical way
  • maintain a sustained line of reasoning, rather than getting lost or bogged down

You are likely to see command words such as:

  • Describe - you need to give an account but no reason
  • Explain - you must give reasons or explanations
  • Devise - you must plan or invent a procedure using your scientific knowledge and understanding
  • Evaluate - you must review information, including identifying strengths and weaknesses, and make a supported conclusion

Six-mark questions may be synoptic questions. These questions bring together ideas from two or more topics. For example, a question about atoms could include ideas about atomic structure, isotopes, radiation and nuclear reactions.

Remember that the topics covered in the first paper are assumed knowledge for the second paper, so questions in the second paper may need knowledge and understanding of those topics too.

The answers shown here give marking points as bullet points. You do not usually need to include all of them to gain six marks, but you do need to write in full sentences, linking them logically and clearly.

Writing six-mark answers with Dr Alex Lathbridge

How to write six-mark answers in your science GCSE exams.

Sample question 1 - Foundation

Question

Sheree does an experiment in her science lesson. She moves a slider to different positions along a piece of resistance wire towards a fixed connection. This changes the length of the resistance wire in the circuit.

She writes down the readings from the ammeter and the voltmeter.

Look at Sheree's results:

Length of resistance wire (cm)Current (A)Potential difference (V)Resistance (惟)
400.120.756.25
300.150.704.67
200.200.60
100.300.45
Length of resistance wire (cm)40
Current (A)0.12
Potential difference (V)0.75
Resistance (惟)6.25
Length of resistance wire (cm)30
Current (A)0.15
Potential difference (V)0.70
Resistance (惟)4.67
Length of resistance wire (cm)20
Current (A)0.20
Potential difference (V)0.60
Resistance (惟)
Length of resistance wire (cm)10
Current (A)0.30
Potential difference (V)0.45
Resistance (惟)

Calculate the missing values for resistance.

Use the information from the table to describe how current and resistance change when the length of the resistance wire is changed. [6 marks]

OCR Gateway Science, GCE Physics, Paper B752, June 2014.

Sample question 2 - Higher

Question

A student rubs a balloon against a scarf.

Describe how the balloon has become charged.

Suggest a way to show that the balloon is charged. What would you expect to see and why? [6 marks]

OCR Gateway Science, GCE Physics, Paper J249, 2016 - Higher.