Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Magnetism and Electromagnetism
293 practice questions
Topics covered
Practice questions
41–50 of 154 · Normal
Question 41
2 marks · Normal
Answer and see the solution →State two properties of a material that would make it suitable to be used as the core of an electromagnet. Explain your answer.
Question 42
1 mark · Normal
Answer and see the solution →State one property that distinguishes a permanent magnet from a temporary (soft) magnet.
Question 43
2 marks · Normal
Answer and see the solution →List two materials that are magnetic and two that are non-magnetic.
Question 44
3 marks · Normal
Answer and see the solution →A student has a collection of four rods made from different materials: iron, aluminium, copper, and steel.
(a)[2 marks]Describe a simple test the student could use to identify which of the rods are magnetic.
(b)[1 mark]Name all the rods that will be attracted to a bar magnet.
Question 45
2 marks · Normal
Answer and see the solution →Explain why plastic is not attracted to a magnet, while iron is.
Question 46
4 marks · Normal
Answer and see the solution →The table below shows four materials and their uses.
Materials and uses Material Use Soft iron Electromagnet core Steel Permanent magnet Copper Electric wiring Plastic Insulation (a)[2 marks]Which materials in the table are magnetic? State their uses.
(b)[2 marks]Explain why soft iron is used as the core of an electromagnet while steel is used for permanent magnets.
Question 47
1 mark · Normal
Answer and see the solution →Name two elements besides iron that are magnetic.
Question 48
2 marks · Normal
Answer and see the solution →State what a magnetic field line represents and give two features shown by magnetic field lines around a magnet.
Question 49
4 marks · Normal
Answer and see the solution →A student investigates the magnetic field around a bar magnet using iron filings and then plotting compasses.
(a)[2 marks]Describe how iron filings can be used to show the shape of the magnetic field around a bar magnet.
(b)[2 marks]Explain how plotting compasses can show the direction of the magnetic field around the magnet.
Question 50
2 marks · Normal
Answer and see the solution →Explain why magnetic field lines are drawn closer together near the poles of a bar magnet.