Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Magnetism and Electromagnetism
293 practice questions
Topics covered
Practice questions
41–50 of 293
Question 41
1 mark · Normal
Answer and check →Which statement is correct about magnetic field lines around a bar magnet?
- A.They start at the south pole and end at the north pole
- B.They form open curves that never meet
- C.They are closest together where the field is strongest
- D.They indicate where the magnetic field is weakest
Question 42
3 marks · Normal
Answer and see the solution →Figure 1 shows the magnetic field lines drawn around a bar magnet.
Magnetic field lines around a bar magnet (a)[1 mark]Label with arrows the direction of two field lines on the diagram.
(b)[2 marks]Explain why the magnetic field is strongest at the poles of the bar magnet.
Question 43
2 marks · Normal
Answer and see the solution →A student says: 'A magnetic field line shows the direction from the south pole of a magnet to the north pole.'
Is the student correct? Explain your answer, referring to field line directions and how they relate to the magnetic force.
Question 44
1 mark · Easy
Answer and see the solution →What is meant by a uniform magnetic field?
Question 45
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 46
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 47
2 marks · Easy
Answer and see the solution →Give two reasons why a uniform magnetic field is useful in laboratory experiments.
Question 48
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 49
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 50
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.