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प्रश्न
Take a magnet from the laboratory and bring it near various objects in your use. Which of them sticks to the magnet? What material is each of them made of? Observe these things carefully. Classify the objects into two groups: those which stick to the magnet and those which do not.
सविस्तर उत्तर
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उत्तर
When a magnet is brought near different objects, some objects are attracted towards it and stick to it, while others are not attracted. Objects made of iron or steel generally stick to a magnet, whereas objects made of wood, plastic, rubber, glass, paper or aluminium do not.
| Objects that stick to the magnet | Material they are made of |
|---|---|
| Iron nail | Iron |
| Safety pin | Steel |
| Paper clip | Steel |
| Needle | Steel |
| Iron screw | Iron |
| Steel key | Steel |
| Objects that do not stick to the magnet | Material they are made of |
|---|---|
| Wooden pencil | Wood |
| Plastic scale | Plastic |
| Rubber eraser | Rubber |
| Glass tumbler | Glass |
| Paper | Paper |
| Aluminium foil | Aluminium |
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