Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Magnetism and Electromagnetism
293 practice questions
Topics covered
Practice questions
21–30 of 139 · Easy
Question 21
2 marks · Easy
Answer and see the solution →Explain why magnetic field lines never cross each other.
Question 22
3 marks · Easy
Answer and see the solution →Two bar magnets are placed near each other on a table. Their north poles are facing each other about 5 cm apart.
(a)[1 mark]Describe what will happen to the magnets.
(b)[2 marks]Draw a labelled diagram to show the magnetic field lines between the two magnets.
Question 23
2 marks · Easy
Answer and see the solution →Describe two features that a diagram of magnetic field lines should include, and explain why each feature is important.
Question 24
1 mark · Easy
Answer and see the solution →What is meant by a uniform magnetic field?
Question 25
2 marks · Easy
Answer and see the solution →Two bar magnets are placed with their north pole of one facing the south pole of the other and a small gap between them.
(a)[1 mark]Describe the shape of the magnetic field formed in the gap between the poles.
(b)[1 mark]Explain why this arrangement produces a uniform magnetic field.
Question 26
1 mark · Easy
Answer and check →Which statement describes a region where the magnetic field is definitely uniform?
- A.Between two parallel, opposite poles with straight, evenly spaced lines
- B.Near only one pole of a bar magnet
- C.Outside two magnets placed end-to-end with like poles facing
- D.Where field lines are curved and spread out
Question 27
2 marks · Easy
Answer and see the solution →Give two reasons why a uniform magnetic field is useful in laboratory experiments.
Question 28
1 mark · Easy
Answer and check →Which arrangement will create the most uniform magnetic field?
- A.Two U-shaped magnets with their open ends facing each other, forming a gap
- B.Two bar magnets with like poles together
- C.One bar magnet placed on its side
- D.A single circular coil of wire
Question 29
2 marks · Easy
Answer and see the solution →Look at the pair of magnets below. The north pole of one is facing the south pole of the other with a uniform gap.
Two bar magnets with ends facing (a)[1 mark]State what you would observe if you placed iron filings in the gap between the magnets.
(b)[1 mark]Explain why this observation occurs.
Question 30
2 marks · Easy
Answer and see the solution →Explain how you can tell from a diagram whether the magnetic field shown is uniform or not.