Magnetic fields
2 marks · EasyA student wants to show the pattern of the magnetic field around a bar magnet using iron filings.
Describe the steps the student should take to obtain the field pattern using iron filings.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(a) —
Common mistakes: Misses the tapping step or safety ideas.
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Marking points
B1 (a) · 1 mark · States to place a piece of paper over the bar magnet and sprinkle iron filings on the paper.
B1 (a) · 1 mark · States to gently tap the paper to make iron filings align with the magnetic field.
Worked solution
1. Place a bar magnet under a piece of paper. 2. Sprinkle iron filings evenly on the paper above the magnet. 3. Gently tap the paper. 4. The filings will arrange themselves to show the pattern of the magnetic field.