Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Electricity
249 practice questions
Topics covered
Practice questions
31–40 of 121 · Easy
Question 31
2 marks · Easy
Answer and see the solution →Explain why the resistance of a wire increases if its temperature increases.
Question 32
2 marks · Easy
Answer and see the solution →The table shows the current for different voltages across a wire in an experiment:
Voltage / V Current / A 1.0 0.2 2.0 0.4 3.0 0.6 Calculate the resistance of the wire using the data.
Question 33
1 mark · Easy
Answer and see the solution →Give the name and symbol of the SI unit used to measure electric charge.
Question 34
1 mark · Easy
Answer and see the solution →State what is meant by a 'neutral atom' in terms of its charges.
Question 35
1 mark · Easy
Answer and check →Which of the following particles has a negative electric charge?
- A.Proton
- B.Neutron
- C.Electron
- D.Positron
Question 36
2 marks · Easy
Answer and see the solution →Complete the sentences below about electric charge.
(a)[1 mark]The electric charge on a proton is ________.
(b)[1 mark]The electric charge on an electron is ________.
Question 37
2 marks · Easy
Answer and see the solution →A student rubs a plastic strip with a wool cloth and finds that the strip is now positively charged.
(a)[1 mark]Explain how the strip became positively charged.
(b)[1 mark]State what happens to the charge on the wool cloth.
Question 38
1 mark · Easy
Answer and see the solution →Explain what happens when a negatively charged balloon is brought near small pieces of paper.
Question 39
1 mark · Easy
Answer and check →Which statement about the flow of charge is correct?
- A.Charge flows in conductors and insulators equally well.
- B.Charge flows more easily in an insulator than in a conductor.
- C.Charge flows easily in conductors but not insulators.
- D.Charge does not flow in conductors.
Question 40
1 mark · Easy
Answer and see the solution →State what type of force exists between two positively charged objects.