Physics
Fill in the blanks :
(a) Temporary magnets are usually made up of …………… .
(b) Rough handling destroys the …………… properties of a magnet.
(c) Like poles …………… each other.
(d) A freely suspended magnet points in the …………… direction.
(e) In a magnet, …………… have the maximum attractive property.
(f) A magnet has …………… poles.
Magnetism
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Answer
(a) Temporary magnets are usually made up of soft iron .
(b) Rough handling destroys the magnetic properties of a magnet.
(c) Like poles repel each other.
(d) A freely suspended magnet points in the north-south direction.
(e) In a magnet, ends have the maximum attractive property.
(f) A magnet has two poles.
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Related Questions
A …………… is used to find the geographic direction at a place because its needle rests in geographic north south direction.
- Magnetic compass
- Bar magnet
- U-shaped magnet
- None of these
The attraction property of a magnet is maximum at its
- centre
- north pole
- south pole
- both (2) and (3)
Write true or false for each statement.
(a) Artificial magnets are weaker than natural magnets.
(b) Poles of a magnet cannot be separated.
(c) A magnet can attract only a magnetic substance.
(d) A magnet has no effect when it is heated to a high temperature.
(e) Permanent magnets get easily demagnetised.
(f) Magnetic poles occur in pairs.
(g) Single touch method is better than the electrical method for making a magnet.
(h) Magnetic keeper is a wooden piece.
(i) Copper cannot be magnetised.
Match the following columns :
Column A Column B (a) Steel (i) to store magnets (b) Soft iron (ii) temporary magnet (c) Used in electric bell (iii) permanent magnet (d) Magnetic keepers (iv) electromagnet