Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Magnetism and Electromagnetism
293 practice questions
Topics covered
Practice questions
31–40 of 139 · Easy
Question 31
1 mark · Easy
Answer and see the solution →What do the even spacing of magnetic field lines between two magnets tell you about the field in that region?
Question 32
1 mark · Easy
Answer and see the solution →Name one example of a magnetically soft material and one example of a magnetically hard material.
Question 33
1 mark · Easy
Answer and check →Which of the following statements correctly describes what happens to an iron nail placed near a bar magnet?
- A.The nail becomes permanently magnetised.
- B.The nail is not affected at all.
- C.The nail becomes temporarily magnetised while in the field.
- D.The nail repels the magnet.
Question 34
1 mark · Easy
Answer and see the solution →State what happens to the direction of the magnetic field around a straight wire if the direction of the current is reversed.
Question 35
2 marks · Easy
Answer and see the solution →A student wraps a coil of copper wire around a soft iron nail and connects it to a battery, creating an electromagnet.
(a)[1 mark]Describe what happens to the iron nail when the current is switched on.
(b)[1 mark]State what happens to the iron nail when the current is switched off.
Question 36
1 mark · Easy
Answer and see the solution →State the shape of the magnetic field around a straight, current-carrying wire.
Question 37
1 mark · Easy
Answer and see the solution →State the rule used to determine the direction of the magnetic field around a current-carrying wire.
Question 38
2 marks · Easy
Answer and see the solution →A straight vertical wire has a current flowing upwards. A student wants to show the direction of the magnetic field around the wire using the right-hand grip rule.
(a)[1 mark]Describe the position of the thumb and fingers of the right hand when using this rule.
(b)[1 mark]State the direction of the magnetic field as viewed from above the wire.
Question 39
2 marks · Easy
Answer and see the solution →The diagram shows a bar magnet and an iron paperclip nearby.
(a)[1 mark]Explain what is meant by induced magnetism in the paperclip.
(b)[1 mark]Explain why the paperclip will not remain magnetised once removed from the field.
Question 40
4 marks · Easy
Answer and see the solution →Two bar magnets are placed end to end with opposite poles facing each other. A thin sheet of paper is placed on top, and iron filings are sprinkled above the magnets.
(a)[2 marks]Draw and label the pattern of magnetic field lines you would expect to see between the magnets.
(b)[2 marks]Explain why the field has this pattern between the two poles.