Saturday, June 27, 2015

CBSE Class 6 Science CH13: Fun With Magnets (MCQs)

Fun With Magnets

Magnets come in various shapes. Can you name those shown?
(Answers given below?)

MCQs

Q1: In a bar magnet, magnetic power is

(a) more that both ends of the magnet.
(b) more in the middle of the magnet.
(c) is same through the magnet.
(d) none of these

Q2(NCERT): A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the

(a) North pole is almost equal to the south pole.
(b) North pole is much more than the south pole.
(c) North pole is much less than the south pole.
(d) Magnet will be same all along its length.

Q3: When a magnet is suspended freely in air with the help of string, it aligns itself in _________ direction.

(a) South-West
(b) North-East
(c) East-West
(d) North-South

Q5: Which of the following is a non-magnetic material?


(a) Nickel
(b) Wood
(c) Iron
(d) Cobalt

Q6: Usually the North Pole of a magnetic needle is painted ______.

(a) red
(b) blue
(c) green
(d) black

Q7: According to Law of Magnets "Unlike poles ________ each other and like poles _______ each other".

(a) repel, attract
(b) attract, attract
(c) attract, repel
(d) repel, repel

Q8: When a North pole of a bar magnet is brought near the north pole of a freely suspended magnetic needle, then it _______ each other.

(a) attracts
(b) repels
(c) neither attracts nor repels
(d) none of these


Q9: Which of the following action will NOT make a magnet loose its magnetic properties?

(a) Drop a magnet from height
(b) Hammer a magnet
(c) Pass Electric current from a current
(d) Heat a magnet

Q10: Which of the following is a natural magnet?

(a) Iron
(b) Magnetite
(c) Nickel
(d) Cobalt

Answers:
1: (a) more that both ends of the magnet.
2: (a) North pole is almost equal to the south pole.
3: (d) North-South
4: (d) North-South
5: (b) Wood
6: (a) red
7: (c) attract, repel
8: (b) repels
9: (c) Pass Electric current from a current
10: (b) Magnetite

Shapes of Magnets:
(a) Bar magnet
(b) Horse shoe (or U-shaped) magnet
(c) Magnetic needle
(d) Ring magnets
(e) Cylindrical magnets

2 comments:

  1. Where is 4 question it's answer is there but question is not there

    ReplyDelete