Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Electricity
249 practice questions
Topics covered
Practice questions
61–70 of 249
Question 61
1 mark · Normal
Answer and check →What is the unit of electrical resistance?
- A.Ampere
- B.Ohm
- C.Volt
- D.Watt
Question 62
3 marks · Normal
Answer and see the solution →Describe an experiment you could carry out to investigate how the current in a wire changes as the voltage across it increases. Include the circuit used, what you would measure, and how you would present the results.
Question 63
3 marks · Normal
Answer and see the solution →A piece of wire in a circuit has a current of 0.30 A flowing through it. The resistance of the wire is 18 Ω.
Calculate the voltage across the wire. Give your answer with the correct unit.
Question 64
1 mark · Easy
Answer and see the solution →Give the name and symbol of the SI unit used to measure electric charge.
Question 65
1 mark · Easy
Answer and see the solution →State what is meant by a 'neutral atom' in terms of its charges.
Question 66
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 67
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 68
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 69
1 mark · Easy
Answer and see the solution →Explain what happens when a negatively charged balloon is brought near small pieces of paper.
Question 70
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.