IP Physics Notes (Upper Secondary, Year 3-4): 14) Magnetism
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Review magnetic materials, field-line patterns, magnetisation methods, and screening strategies for IP magnetism questions.
Last updated 30 Nov 2025
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- Start Here
- Laws & Properties of Magnets
- Magnetic Materials: Soft vs Hard
- Magnetisation & Demagnetisation
Q: What does IP Physics Notes (Upper Secondary, Year 3-4): 14) Magnetism cover?
A: Review magnetic materials, field-line patterns, magnetisation methods, and screening strategies for IP magnetism questions.
Quick recap -- Magnetism revolves around poles, field lines, and how materials respond. Distinguish soft vs hard magnets, master field sketches, and know how to magnetise or demagnetise safely.
Start Here
| Read time | What to take away |
| 1 second | Magnetism is about poles, field lines, and material response. |
| 10 seconds | Like poles repel, unlike poles attract, field lines run north to south outside a magnet, and soft iron is useful when magnetism must switch on and off. |
| 100 seconds | Use the field-pattern and screening sections to practise drawing lines with arrows, choosing soft or hard magnetic materials, and explaining magnetisation or demagnetisation steps. |
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These notes align with SEAB GCE O-Level Physics (6091) content used in IP programmes (exams from 2026).
Status: SEAB O-Level Physics 6091 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for these notes.
Laws & Properties of Magnets
- Like poles repel, unlike poles attract; forces strongest near poles.
- Freely suspended magnet aligns roughly north-south (Earth behaves like a giant magnet: geographic north magnetic south).
- Magnetic materials: iron, steel, cobalt, nickel. Non-magnetic: copper, aluminium, plastic, wood.
