# State two differences between a permanent magnet and a temporary (induced) magnet, and for each difference give one application that makes use of that property.

> Cambridge International IGCSE Physics (0625) — 4.1 Simple phenomena of magnetism · State · 4 marks

## Mark scheme (4 marks)

1. A permanent magnet retains its magnetism when removed from a magnetic field / produces its own magnetic field, whereas a temporary magnet loses its magnetism when the magnetic field is removed.
2. Application for permanent magnet that requires the property stated — e.g. compass or fridge magnet (always needs to be on / always producing a field).
3. A temporary magnet can be switched on and off (its magnetism can be turned on and off by varying the current), whereas a permanent magnet cannot.
4. Application for temporary magnet that requires the property stated — e.g. scrap metal crane / electric motor (needs to be switched on and off).

## Key terms

- [permanent magnet](https://www.gradenine.co.uk/glossary/permanent-magnet)
- [temporary (induced) magnet](https://www.gradenine.co.uk/glossary/temporary-induced-magnet)

## Related

- [Revision notes for Cambridge International IGCSE Physics (0625)](https://www.gradenine.co.uk/learn)
- [How to answer "State" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/state-two-differences-between-a-permanent-fda2954c) · Published by Druglandscape Ltd.