Edexcel IGCSE Physics 6.3 hard and soft magnetic materials
Practise magnetic-material questions by naming soft iron, explaining temporary magnetism and linking steel to permanent magnets.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- Name iron as a soft magnetic material when asked for a temporary magnet core.
- Explain why an iron block will not remain a permanent magnet after removal.
- Link steel to bar magnets because it keeps magnetism and is hard to demagnetise.
6.3 Hard and soft magnetic materials question 1
[Maximum number: 1]
The region of space around a magnet is known as a magnetic field.
State the name of a material that would be suitable for use as a permanent magnet.
steel / nickel / cobalt / neodymium
Condone:
- iron
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