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प्रश्न
Write down the names of substances.
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उत्तर
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संबंधित प्रश्न
What are magnetic and non-magnetic substances? Give two examples of each.
Answer the following in short.
Give two examples each of magnetic and. non-magnetic substances.
Write main properties of a magnet.
It is advised to keep the magnets away from television, mobiles, CD and computers Explain why?
Few iron nails and screws got mixed with the wooden shavings while a carpenter was working with them.How can you help him in getting the nails and screws back from the scrap without wasting his time in searching with his hands?
Rubber is a magnetic material.
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Affect observed in each case is stated in Column I. Possible reasons for the observed affects are mentioned in Column II.
Match the statements given in Column I with those in Column II.
| Column I | Column II |
| Boat gets attracted towards the magnet | Boat is fitted with a magnet with north pole towards its head |
| Boat is not affected by the magnet | Boat is fitted with a magnet with south pole towards its head |
| Boat moves towards the magnet if north pole of the magnet is brought near its head | Boat has a small magnet fixed along its length |
| Boat moves away from the magnet when north pole is brought near its head | Boat is made of magnetic material |
| Boat floats without changing its direction | Boat is made up non-magnetic material |
______ made objects are attracted by magnets.
Analogy:
Magnetic substance: Attracted by magnets
Non-magnetic substance: ______.
Suggest an activity to prepare a magnetic compass by using an iron needle and a bar magnet.
