Fun with Magnets Online Test

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Fun with Magnets

Description: This test is standardised achievment test in Physics suitable for the students of cbse,icse and all other boards of class 6 and also useful for the students of diferent competitions and olympiads.
Number of Questions: 15
Created by: Vijay Puri
Tags: Magnets and Megnetism Magnetism & Electricity at Work Fun with Magnets Magnetism

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Which of the following is preferred to make an electromagnet?

Soft iron
Steel
Plastic
Glass
Cobalt

The poles of a magnet are located at its

upper surface
lower surface
middle point
ends
whole surface

A magnetic compass is placed at the mid point of a bar magnet. The correct observation will be that

it will point in the North-South direction
it will align along the length of the bar magnets with its N-pole towards the N-pole of the bar magnet
it will align along the length of the bar magnet with its N-pole towards the S-pole of the magnet
it will point randomly in any direction
it will align along the length of the bar magnets with its S-pole towards the S-pole of the bar magnet

How many number of poles are there are in a magnet?

In which of the following is a ceramic magnet used?

Refrigerator door
Loud speakers
Telephones
Computers
Dynamos

Magnets do not lose their properties significantly when

left in open
the magnet is hammered several times
dropped from a height
an alternating current is passed around the magnet
the magnet is heated to a very high temperature

A matchbox containing an unknown object, is placed on a thin glass table. From the other side of the glass i.e. below the table, a bar magnet is brought in front of the matchbox. When the bar magnet moves, it is able to drag the matchbox along. What is in the matchbox?

Marble
Match-sticks
Steel ball bearings
Rice grains
Glass beads

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

An iron nail, a battery and a copper wire
An iron nail, a battery and a light bulb
An iron nail, a light bulb and copper wire
A battery, a light bulb and a copper wire
An iron nail, a battery and a thread

Magnetic lines of force ______________.

are closed and continuous curves
travel in the East-West direction
always intersect each other
can travel in any direction
depend upon the shape of magnet

Which of the following is a natural magnet?

Loadstone
Alnico
Magnadur
Bar magnet
Alconico

The power of the magnetic force __________.

increases from North pole to South pole
is same all over the magnet
is minimum near its ends and maximum in the middle
decreases from North pole to South pole
maximum near its ends and decreases towards the middle

We can magnetise a magnetic substance without touching it by a magnet by

single touch method
double touch method
magnetic induction
using electric current
using magnetic compass

A freely suspended magnet, rests in the

N-E direction
E-W direction
W-E direction
S-N direction
N-S direction

Which of the following is the surest test of magnetism?

Attraction
Repulsion
Diffusion
Induction
De-magnetise

A magnetic keeper is

a person who looks after magnets
a piece of aluminium that is placed at the ends of the two bar magnets
a piece of steel that is placed at the ends of the two bar magnets
a piece of soft iron that is placed at the ends of the two bar magnets
a box in which magnet is kept

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