Pearson Edexcel International GCSE in Physics · 4PH1 · Free · no account needed
Induced Magnetism and Field Patterns — exam questions
10 original Incandio exam-style questions on Induced Magnetism and Field Patterns, 25 marks, about 25 minutes of writing. Each one carries the command word, the tariff and the specification statement it assesses, exactly as a paper presents them. This is an original Incandio practice question, written to reflect the structure and demands of the qualification. It is not an official Pearson Edexcel past-paper question.
This is the practice set for Induced Magnetism and Field Patterns — the lesson that teaches it. Read the lesson first if the idea is new; come here when you want to find out whether you can turn it into marks. Completely free, no account needed to read.
What these questions ask of you
7 command words run through this set, and on Pearson Edexcel International GCSE Physics each one means something precise. Answering the wrong command is the commonest way a candidate who understands the lesson still loses the mark.
- Which (1 mark)
- one option chosen from the set given
- State (1 mark)
- one precise fact or definition
- Explain (2–4 marks)
- the physics that causes it, set out as a line of reasoning Misread as: describing the change without giving the physical reason for it
- Describe (2–4 marks)
- developed, linked statements of what happens — including a named direction where one exists
- Compare (2–4 marks)
- explicit comparison naming both cases
- Suggest (1–3 marks)
- a plausible answer applying taught physics to an unfamiliar arrangement
- Give (1–2 marks)
- a short factual answer
Assessed on Paper 1 (4PH1/1P) and Paper 2 (4PH1/2P), against AO1, AO2, AO3.
Where these sit in the specification
Pearson Edexcel International GCSE Physics (4PH1) — statements 6.5 · 6.6 · 6.7. Incandio is aligned to this specification; it is not published by, endorsed by or affiliated with Pearson, and it reproduces none of Pearson's wording.
The 10 questions
Answer them on paper, then open the lesson's exam practice to have them marked. The mark scheme, the accepted and rejected answers and the annotated model answer are in Incandio and are not printed here — an answer beside its question is not practice.
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A student holds the north pole of a bar magnet just above a heap of steel paperclips. One paperclip jumps up and sticks to the magnet, a second hangs from the first, and a third from the second, until a short chain hangs beneath the magnet. When the magnet is taken away, the chain falls apart at once.
Table 1 — how many paperclips hang in the chain Magnet used Number of paperclips held Weak bar magnet 2 Strong bar magnet 5 Strong bar magnet, through a 3 mm card 3 (a)
(1)Give
Give the number of paperclips held by the strong magnet through the card, using Table 1.
A student holds the north pole of a bar magnet just above a heap of steel paperclips. One paperclip jumps up and sticks to the magnet, a second hangs from the first, and a third from the second, until a short chain hangs beneath the magnet. When the magnet is taken away, the chain falls apart at once.
Table 1 — how many paperclips hang in the chain Magnet used Number of paperclips held Weak bar magnet 2 Strong bar magnet 5 Strong bar magnet, through a 3 mm card 3 (b)
(3)Explain
Explain why a second paperclip hangs from the first one, and why the chain falls apart when the magnet is removed.
A student holds the north pole of a bar magnet just above a heap of steel paperclips. One paperclip jumps up and sticks to the magnet, a second hangs from the first, and a third from the second, until a short chain hangs beneath the magnet. When the magnet is taken away, the chain falls apart at once.
Table 1 — how many paperclips hang in the chain Magnet used Number of paperclips held Weak bar magnet 2 Strong bar magnet 5 Strong bar magnet, through a 3 mm card 3 (c)
(3)Explain
Explain what Table 1 shows about the strength of the magnetic field.
A student holds the north pole of a bar magnet just above a heap of steel paperclips. One paperclip jumps up and sticks to the magnet, a second hangs from the first, and a third from the second, until a short chain hangs beneath the magnet. When the magnet is taken away, the chain falls apart at once.
Table 1 — how many paperclips hang in the chain Magnet used Number of paperclips held Weak bar magnet 2 Strong bar magnet 5 Strong bar magnet, through a 3 mm card 3 (Total for Question 1 = 7 marks)
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(1)Which
Which material can have magnetism induced in it?
Material A copper B iron C glass D aluminium (Total for Question 2 = 1 mark)
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(1)State
State which pole is induced in the near end of a piece of iron held close to the north pole of a magnet.
(Total for Question 3 = 1 mark)
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(3)Explain
Explain why a magnet attracts an unmagnetised iron nail.
(Total for Question 4 = 3 marks)
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(4)Describe
Describe how to plot the magnetic field pattern of a bar magnet using a plotting compass.
(Total for Question 5 = 4 marks)
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(3)Describe
Describe how two bar magnets can be arranged to produce a uniform magnetic field, and what such a field looks like.
(Total for Question 6 = 3 marks)
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(3)Compare
Compare using iron filings with using a plotting compass to investigate a magnetic field.
(Total for Question 7 = 3 marks)
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(3)Suggest
Suggest why the ship's compass needs correcting in this way.
Correcting a ship's compass — A steel-hulled ship carries a magnetic compass in a binnacle. Bolted to either side of the binnacle are two large iron spheres, and small permanent magnets are fixed in the base. Without them the compass reads several degrees off true, and the error changes as the ship turns onto a different heading.
(Total for Question 8 = 3 marks)
Have them marked, then defend the answer
Practice tells you the mark; teaching it back tells you whether you understand it. On Incandio a topic counts as mastered only once you have taught it and defended it.
- Mark these questions — 10 questions, marked on Incandio against the authored scheme, with the mistake you actually made named.
- Teach it — explain Induced Magnetism and Field Patterns to Ember, an AI pupil who does not have it yet and asks the awkward question.
- Defend it — argue it against William Gilbert over three rounds, marked against descriptors you can read first.
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Back to the lesson
- Induced Magnetism and Field Patterns — Why an iron nail sticks to a magnet at all, why it never pushes back, and how to plot a field you cannot see.
- All of Incandio Physics · Incandio Exam Practice