Quiz about Fun with Magnets

Question 1

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

Accepted Answer

N-S

Answer

North

Answer

N-W

Answer

N-E

Question 2

----- is the only natural magnet.

Accepted Answer

Magnetite

Answer

Ebonite

Answer

Cobalt

Answer

Nickel

Question 3

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

Accepted Answer

Nickel

Answer

Glass

Answer

Wood

Answer

China ware

Question 4

Which of the following gets attracted to a magnet?

Accepted Answer

Common pins

Answer

Copy book

Answer

Silver spoon

Answer

Comb

Question 5

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

Accepted Answer

Geographical North

Answer

Geographical South

Answer

Geographical East

Answer

Geographical West

Question 6

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

Accepted Answer

Repel

Answer

Attract

Answer

Both a and b

Answer

None

Question 7

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

Accepted Answer

Attracts

Answer

None

Answer

Repels

Answer

It rotates

Question 8

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

Accepted Answer

(d)Both b and c

Answer

(a)Keeping in a box

Answer

(b)Heating

Answer

(c)Hammering

Question 9

electric bell is an example of _____________magnet.

Accepted Answer

Electromagnet

Answer

Bar magnet

Answer

Cylindrical magnet

Answer

Horseshoe magnet

Question 10

--------type of magnet is used in cranes to lift heavy containers from ships.

Accepted Answer

b)Cylindrical magnet

Answer

a)Bar magnet

Answer

c)Electromagnet

Answer

d)Horseshoe magnet

Question 11

Magnetic poles

Accepted Answer

Always exist in pairs

Answer

Sometimes exist in pairs

Answer

Always exist separately

Answer

Some times exist separately

Question 12

True or False: All metals are attracted to magnet.

Accepted Answer

FALSE

Answer

TRUE

Question 13

Amy used a magnet to hold one piece of paper on the refrigerator. Later, she tried to use the same magnet to hold a stack of four pieces of paper, and the magnet wouldn't stick to the fridge. Why did this happen

Accepted Answer

The magnet couldn't hold due to the thickness of the paper

Answer

The magnet needs glue

Answer

Paper repels magnets

Answer

A magnet isn't attracted to the refrigerator

Question 14

Where on a magnet is the force the strongest

Accepted Answer

Poles

Answer

Middle

Answer

Repel

Question 15

there are how many poles in a magnet

Accepted Answer

2

Answer

1

Answer

5

Answer

3

Question 16

Maglev stands for

Accepted Answer

magnetic levigation

Answer

magnetic train

Answer

magnetic leave

Question 17

Magnet looses it magnetic power on

Accepted Answer

All of these

Answer

Heating

Answer

Hammering

Answer

Dropping from height

Question 18

Which two metals will be attracted by a magnet?

Accepted Answer

Iron and cobalt

Answer

Gold and Silver

Answer

Aluminium and Lead

Answer

Copper and Cobalt

Question 19

What will happen when these magnets are brought close together?

Accepted Answer

They will repel each other.

Answer

They will attract each other.

Answer

Both magnets will turn to the left

Answer

Both magnets will turn to the right

Question 20

Earth acts like a giant magnet because its center is made up MOSTLY of

Accepted Answer

iron

Answer

granite

Answer

limestone

Answer

nickel

Question 21

A magnet is broken into 7 pieces. How many north poles are formed from these seven pieces?

Accepted Answer

7 poles

Answer

2 poles

Answer

6 poles

Answer

5 poles

Question 22

This is a picture of a ________________ magnet.

Accepted Answer

horseshoe

Answer

bar

Answer

circle

Answer

paddle

Question 23

Observe the pictures A and B given in pictures carefully Which of the following statement is correct for the above given pictures?

Accepted Answer

(d) In A, cars 1 and 2 will come closer to each other and in B, 3 and 4 will move away from each other.

Answer

(a) In A, cars 1 and 2 will come closer and in B, cars 3 and 4 will come closer.

Answer

(b) In A, cars 1 and 2 will move away from each other and in B, cars 3 and 4 will move away.

Answer

(c) In A, cars 1 and 2 will move away and in B, 3 and 4 will come closer to each other.

Question 24

Three magnets A, B and C were dipped one by one in a heap of iron filing. Fig. 13.3 shows the amount of the iron filing sticking to them. The strength of these magnets will be

Accepted Answer

A<B<C

Answer

A>B>C

Answer

A=B=C

Answer

AC

Question 25

Where does a compass work?

Accepted Answer

D) At all the places within the earth's magnetic field

Answer

A) Only in oceans or seas

Answer

B) Only on land, where the earth's magnetic field is strong

Answer

C) Only on high mountains

Question 26

A How is a compass useful to us?

Accepted Answer

C) In finding all the directions of a place

Answer

A) In finding the altitude of a place

Answer

B) In finding only the north of a place

Answer

D) In making artificial magnets

Question 27

Two magnets are placed close to each other as shown below. Which set will attract each other?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 28

Name the shape of the magnet in the given image

Accepted Answer

None of them

Answer

Freeze magnets

Answer

Bar magnets

Answer

Horse shoe magnet

Question 29

Where was the magnetic compass discovered first?

Accepted Answer

China

Answer

U.S.A

Answer

U.K

Answer

India

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