Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Magnetism and Electromagnetism
293 practice questions
Topics covered
Practice questions
11–20 of 139 · Easy
Question 11
2 marks · Easy
Answer and see the solution →A heater operates at a current of 1.5 A when powered by a voltage of 230 V.
(a)[1 mark]State the unit for the current given in the question.
(b)[1 mark]State the unit for the voltage used by the heater.
Question 12
2 marks · Easy
Answer and see the solution →Complete the following table by filling in the correct SI unit for each quantity.
Quantity Unit Current Voltage Power Question 13
1 mark · Easy
Answer and check →What is the correct SI unit for measuring current?
- A.ohm
- B.ampere
- C.candela
- D.volt
Question 14
1 mark · Easy
Answer and see the solution →Which SI unit uses the symbol 'V'? State the physical quantity it measures.
Question 15
1 mark · Easy
Answer and see the solution →A power supply provides 12 V to a lamp. What is the SI unit of power that the lamp uses?
Question 16
1 mark · Easy
Answer and see the solution →What do we call the region around a magnet where magnetic forces can be detected?
Question 17
1 mark · Easy
Answer and check →Which statement best describes the direction of magnetic field lines around a bar magnet?
- A.They travel from north to south outside the magnet.
- B.They travel from south to north outside the magnet.
- C.They form random loops around the magnet.
- D.They always point towards both poles.
Question 18
1 mark · Easy
Answer and see the solution →State what is meant by the term ‘magnetic field line’.
Question 19
2 marks · Easy
Answer and see the solution →A student uses iron filings to show the magnetic field around a bar magnet. The filings form a dense pattern near the ends of the magnet and are more spread out in the centre.
Explain what this tells you about the magnetic field near the ends, compared to the centre of the magnet.
Question 20
3 marks · Easy
Answer and see the solution →Look at the diagram below, showing a bar magnet lying flat on a table.
Bar magnet with poles labelled. (a)[2 marks]Add arrows to the diagram to show the direction of magnetic field lines outside the magnet.
Draw at least two field lines from the north to the south pole.
(b)[1 mark]State the direction of the magnetic field inside the bar magnet.