This exam tips covers Exam Tips for Magnetic Fields within Magnetic Fields for GCSE Physics. Revise Magnetic Fields in Magnetism for GCSE Physics with 14 exam-style questions and 12 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 12 of 13 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 12 of 13
Practice
14 questions
Recall
12 flashcards
💡 Exam Tips for Magnetic Fields
🎯 Common Question Types:
- Draw and label field lines for a bar magnet (2 marks)
- Explain how to increase electromagnet strength (3 marks)
- Compare permanent and induced magnets (2-3 marks)
- Explain an application of an electromagnet (2-3 marks)
📝 Key Command Words:
- Draw: Show correct arrows (N to S outside), closer lines at poles, no crossing lines
- Explain: Give a reason — e.g. "iron is used because it loses magnetism when current stops"
- Compare: State similarities AND differences between permanent/induced
- Describe: Give the direction and pattern of the field
⚠️ Common Mistakes to Avoid:
- Drawing field lines going from S to N — always N to S outside the magnet
- Forgetting arrows on field lines
- Saying "steel core" instead of "soft iron core" for electromagnets
- Saying induced magnets can be repelled — they ALWAYS attract to permanent magnets
Quick Check: List three ways to increase the strength of an electromagnet and explain why a soft iron core is better than a steel core.
Three ways: (1) increase the current, (2) increase the number of turns/coils, (3) add a soft iron core. Soft iron is better than steel because it is an induced magnet — it becomes strongly magnetised when current flows but immediately loses its magnetism when the current is switched off. Steel would stay magnetised permanently, making it impossible to switch the electromagnet off.
Keep building this topic
Read this section alongside the surrounding pages in Magnetic Fields. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Magnetic Fields
What happens when two like magnetic poles (e.g. north and north) are brought close together?
State the rules for the attraction and repulsion of magnetic poles.
Quick Recall Flashcards
14 questions on Magnetic Fields — practise free
Instant marking, adaptive difficulty, and 12 spaced repetition flashcards. Free until your GCSEs.
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