Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Units (Magnetism & Electromagnetism)
80 practice questions
Topics covered
Practice questions
61–70 of 80
Question 61
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 62
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 63
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 64
1 mark · Easy
Answer and see the solution →State the shape of the magnetic field around a straight, current-carrying wire.
Question 65
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 66
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 67
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 68
4 marks · Normal
Answer and see the solution →A student places a steel nail and an iron nail near a bar magnet and observes what happens.
(a)[2 marks]Explain what is meant by 'induced magnetism' in this context.
(b)[2 marks]Both nails become attracted to the magnet, but only one remains magnetised after removing the magnet. Which one, and why?
Question 69
2 marks · Normal
Answer and see the solution →State two features of a magnetic field that are shown by field lines.
Question 70
4 marks · Normal
Answer and see the solution →A straight wire carries a current vertically upwards. Plotting compasses are placed in a horizontal plane around the wire.
(a)[2 marks]Describe the shape of the magnetic field around the wire.
(b)[2 marks]State and use the right-hand grip rule to find the direction of the field when looking from above.