Magnets and magnetic fields Quiz
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5 questions, one answer each
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1. Which metal is NOT attracted by a magnet?
- A. Iron
- B. Nickel
- C. Cobalt
- D. Aluminium
2. Two bar magnets repel each other. What does this show?
- A. One of them is only a magnetic material
- B. Their facing poles are alike
- C. Their facing poles are unlike
- D. Neither is a magnet
3. In which direction do magnetic field lines point outside a bar magnet?
- A. North pole to south pole
- B. South pole to north pole
- C. North pole to the centre of the magnet
- D. Round the magnet in circles
4. What do closely spaced field lines show?
- A. The magnet is demagnetised
- B. The field is weak
- C. The field is strong
- D. The field is uniform
5. Which action would help to demagnetise a steel magnet?
- A. Stroking it with a magnet in one direction
- B. Heating it strongly
- C. Placing it near a compass
- D. Keeping it in a cool place