Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Magnetism
72 practice questions
Topics covered
Practice questions
31–38 of 38 · Normal
Question 31
3 marks · Normal
Answer and see the solution →Describe an experiment you could carry out to demonstrate that magnetism can be induced in a piece of iron. Include the apparatus you would use, the method, and the expected result.
Question 32
4 marks · Normal
Answer and see the solution →Figure 1 shows a bar magnet and two identical iron nails hanging from it as in an experiment.
Figure 1: Bar magnet and two hanging iron nails (a)[2 marks]Explain why nail 1 is able to hang from the bar magnet.
(b)[2 marks]Explain why nail 2 is able to hang from nail 1.
Question 33
2 marks · Normal
Answer and see the solution →Give two ways to show that a material is magnetically soft.
Question 34
5 marks · Normal
Answer and see the solution →An iron nail and a steel nail are both placed in contact with the end of a bar magnet.
(a)[2 marks]State what will happen to each nail while the bar magnet is present.
(b)[2 marks]Describe what happens to the magnetism in each nail after the bar magnet is removed.
(c)[1 mark]Explain the difference in behaviour between the iron nail and the steel nail using the ideas of magnetically soft and hard materials.
Question 35
4 marks · Normal
Answer and see the solution →A student places two identical bar magnets flat on a table, their north poles facing each other about 5 cm apart.
(a)[2 marks]State and explain what the student will observe when trying to push the magnets closer together.
(b)[2 marks]Draw a labelled diagram to show the magnetic field pattern between the magnets.
Question 36
4 marks · Normal
Answer and see the solution →A bar magnet is placed under a piece of paper. A student sprinkles iron filings above and observes the pattern formed.
(a)[2 marks]Describe what the pattern of iron filings reveals about the shape and strength of the magnetic field around the bar magnet.
(b)[2 marks]The student now arranges two bar magnets 3 cm apart so their opposite poles face each other.
Explain how the iron filings' pattern will be different in the space between the magnets. What does this show?
Question 37
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 38
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.