CBSE Class 6 Science HOTs Fun with Magnets

2. FUN WITH MAGNETS

1)When a magnet is suspended freely it always aligns itself in -------- direction?

a) North b) N-S c) N-W d) N-E

2) ---------- is the only natural magnet.

a) Magnetite b) Ebonite c) Cobalt d) Nickel

3) Which of the following cannot be used to make a magnet?

a) Cobalt b) Iron c) Ebonite d) Steel

4) Which of the following is not a non-magnetic substance?

a) Glass b) Wood c) China ware d) Nickel

5) Which of the following gets attracted to a magnet?

a) Copy book b) Silver spoon c) Comb d) Common pins

6) When a magnet is placed on a plastic plate with common pins spread on it, then ----

a) Pins stick all around the magnet b) Pins stick at the middle of the magnet

c) Pins stick at the ends of the magnet d) None

7) The North end of the freely suspended magnet points towards -------?

a) Geographical North b) Geographical South c) Geographical East d) Geographical West

8) The south pole of the freely suspended magnet points towards -------?

a) Geographical North b) Geographical South c) Geographical East d) Geographical West

9) like poles of magnets -------- each other.

a) Attract b) Repel c)Both a and b d)None

10) Unlike poles of magnets -------- each other.

a) Attract b) Repel c) Both a and b d) None

11) ------------ is the surest test of magnetism.

a)Attraction b)Rotation c)Repulsion d)None

12) When a N pole of a bar magnet is brought near the north pole of a freely suspended magnetic needle, then it -----------?

a)Attracts b)Repels c)It rotates d)None

13)When a S pole a magnet in brought near the N pole of a freely suspended magnetic needle, then it -----------?

a) None b)Repels c)It rotates d)attracts

14)____________is a device used by pilots and navigators used to find the direction.

a)barometer b)thermometer c)magnetic compass d)none

15) Magnetism of a magnet is lost by doing which of the following acts

a)Keeping in a box b)Heating c)Hammering d)Both b and c 

16)Which of the following gets demagnetised when a powerful magnet is kept near it