Pls give me some MCQ on chapter Fun with Magnets
Answers
Answer:
Question 1.
Which is an example of a magnetic substance?
(a) Iron
(b) Nickel
(c) Cobalt
(d) All of these
Question 2.
Magnets have a shape
(a) cylindrical
(b) ball ended
(c) horse shoe
(d) all of these
Answer: (d) All of these
Explanation:
All of these are attracted towards a magn
Answer
Answer: (d) all of these
Explanation:
Magnets may be of various shapes including bar magnets.
Question 3.
When a bar magnet is brought near iron dust, most of the dust sticks
(a) near the middle
(b) equally everywhere
(c) near two ends
(d) at the middle and ends
Answer: (c) near two ends
Explanation:
Magnetic field intensity is maximum at the poles of a bar magnet.
Question 4.
A freely suspended bar magnet rests in
(a) north-south directions
(b) east-west directions
(c) upside down
(d) any direction by chance
Answer
Answer: (a) north-south directions
Explanation:
A bar magnet always rests in N-S directions when suspended freely.
Question 5.
Attraction is seen between the poles of two bar magnets in the case of
(a) N-pole of one magnet with N-pole of other
(b) N-pole of one magnet with S-pole of other
(c) S-pole of one magnet with S-pole of other
(d) all of these cases will show attraction
Answer
Answer: (b) N-pole of one magnet with S-pole of other
Explanation:
Unlike poles attract and like poles repel each other.
Question 6.
Which is a natural magnet?
(a) Magnetite
(b) Haemetite
(c) Bakelite
(d) Copper
Answer
Answer: (a) Magnetite
Explanation:
Magnetite is a natural magnet.
Question 7.
Choose the wrong statement
(a) Heat can destroy magnetic properties of a magnet.
(b) Magnets are made up of different materials and different shapes.
(c) There is a maximum attraction in middle of a magnet.
(d) Magnetite does not show magnetic properties.
Answer
Answer: (d) Magnetite does not show magnetic properties.
Explanation:
Magnetite does not show magnetic properties.
Explanation:
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Explanation:
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