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Questions and Answers
What did the Chinese people discover in the 12th century?
What did the Chinese people discover in the 12th century?
- Compass navigation (correct)
- Lodestone properties
- Artificial magnets
- Magnetism
What is lodestone?
What is lodestone?
- Non-magnetic mineral
- Naturally magnetized magnetite (correct)
- Iron ore
- Artificial magnet
What is the force exerted by magnets when they attract or repel each other called?
What is the force exerted by magnets when they attract or repel each other called?
- Electromagnetism
- Gravitational force
- Magnetism (correct)
- Centrifugal force
What are practically all magnets nowadays?
What are practically all magnets nowadays?
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What important property was utilized by the Chinese in building compasses?
What important property was utilized by the Chinese in building compasses?
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