Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Magnetism
72 practice questions
Topics covered
Practice questions
71–72 of 72
Question 71
4 marks · Normal
Answer and see the solution →Two bar magnets are used in an experiment. One is made from iron and the other from steel.
(a)[2 marks]Explain why steel is used for making permanent magnets, but iron is not.
(b)[2 marks]When a small iron paperclip is placed next to a steel magnet, describe what happens to the paperclip and explain why.
Question 72
5 marks · Normal
Answer and see the solution →A technician needs to create a region with a strong, uniform magnetic field for a physics experiment.
(a)[2 marks]Describe how two permanent bar magnets should be arranged to produce a uniform magnetic field.
(b)[2 marks]Sketch or describe the magnetic field lines in the region between the two magnets.
(c)[1 mark]Explain why the field is considered uniform in this region.