Fun with Magnets Worksheet-1

Fun with Magnets Worksheet-1

1. The two poles of a horseshoe magnet are

(a) East and West poles

(b) North and South poles

(c) North-East and South-East poles

(d) North-West and South-West poles

2. A magnet will attract objects made of _____

(i) Iron (ii) Cobalt (iii) Nickel (iv) Copper

(a) (i), (ii) & (iii)                           (b) (i), (ii) & (iv)

(c) (ii), (iii) & (iv)                         (d) (i), (ii), (iii) & (iv)

3. You should not store a floppy disk near a magnet because _____

(a) The magnet will rust

(b) The magnet will become weaker

(c) The information in the disk may be erased

(d) The magnet will break the disk

4. Which of the following groups of items is needed to make an electromagnet?

(a) An iron nail, a battery and copper wire

(b) An iron nail, a battery and a light bulb

(c) An iron nail, a battery and a light bulb

(d) An iron nail, a light bulb and copper wire

5. A magnet is also called lodestone because 

(a) It lifts load

(b) It is a stone

(c) It tells us direction

(d) None of these

6. The needle of the compass is made of a magnet because it ______

(i) Attracts metal

(ii) Gets deflected when a magnet is brought near

(iii) Comes to rest in East-West direction

(iv) Comes to rest in a North-South direction

(a) (i) & (ii)                                     (b) (i), (ii) & (iii)

(c) (ii) & (iv)                                   (d) (ii) only

7. In which of the following a permanent magnet is not used?

(a) In magnetic door catches

(b) In electric bells

(c) In compasses

(d) None of these

8. Which of the following does not contain a magnet in it?

(a) Torch           (b) Radio           (c) Fan               (d) Compass

9. A magnet can be made weaker by

(a) Keeping it wrapped in cotton wool

(b) Using it as a hammer

(c) Keeping it in a cool room

(d) Playing with it

10. There are following number of poles in a magnet

(a) One               (b) Two              (c) Three            (d) Four

Answer Key:

(1)–(b); (2)–(a); (3)–(c); (4)–(a); (5)–(c); (6)–(c); (7)–(b); (8)–(b); (9)–(b); (10)–(b)