Free Printable MAGNETS 3

1.

1.Which of the following statements is true for a bar magnet?

a)

A. magnetic field is strongest near its centre

b)

B. its surrounded by a magnetic field

c)

C. the north pole is stronger than the south pole.

d)

D. the south pole is stronger than the north pole

2.

Iron,Nickel and Cobalt are all ………………………………………materials.

a)

A. shiny

b)

B poles

c)

C magnetic

d)

D non-magnetic

3.

The method to magnetise a magnet is ....................

a)

A by passing d.c

b)

B by heating

c)

C by hammering

d)

D by passing a.c

4.

Earth acts like a giant magnet because its centre is made up of mostly

a)

A nickel

b)

B limestone

c)

C granite

d)

D iron

5.

Magnets which are made by passing electric current through it is known as

a)

A no magnet possible

b)

B electromagnet

c)

C bar magnet

d)

D ball ended magnet

6.

Which of the following objects cannot be moved by a magnet?

a)

A paper clip

b)

B nail

c)

C toothpick

d)

D staple

7.

If a magnet is broken into 2 pieces, you will get

a)

A two magnets, both with a north and south pole

b)

B a magnet that no longer works

c)

C two magnets ,one south pole and one north pole

d)

D one north and south pole

8.

A device that uses a free-moving magnetic needle to show direction is a

a)

A magnet

b)

B compass

c)

C magnetic field

d)

D lodestone

9.

The method to demagnetise a magnet is

a)

A by passing a.c

b)

B by stroking

c)

C by induction

d)

D by passing d.c

10.

This is a picture of an electromagnet. How can the electromagnet be made stronger?

a)

A add more coils of wire to the nail

b)

B use a small battery

c)

C reverse the poles of the magnet

d)

D remove all coils and nail

MAGNETS 3

Total questions: 10

Worksheet time: 10mins

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