CBEHub

← 4.4 Magnetism and electromagnetic induction

Fridge magnets and other everyday magnets

General Science · Grade 10 · about 40 minutes

Permanent magnets hold, catch, speak and seal; electromagnets switch. Both sit in Kenyan homes and workshops.

Sign in to read this lesson

Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.

  • 7 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
  • Your progress kept across every subject you take
Sign in Create an account

Other lessons in this sub-strand

  1. Magnets, magnetisation and magnetic fields
  2. Electromagnetic induction and where it matters
  3. Soft iron magnetises and demagnetises easily
  4. Magnetising by stroking
  5. Electrical magnetisation and demagnetisation
  6. The field around a bar magnet
  7. Two magnets: unlike poles, like poles, neutral point
  8. The compass and the Earth's magnetic field
  9. Fridge magnets and other everyday magnets
  10. Faraday and induced e.m.f.
  11. The magnet-and-coil experiment
  12. Factors affecting the size of the induced e.m.f.
  13. How a generator works
  14. How a transformer works
  15. KPLC, transformers and electricity in Kenya