NEW
Font size
WorksheetsFun with magnet
Total questions: 20
Worksheet time: 30mins
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
A>B>C
A<B<C
A=B=C
A<B>C
What is a natural magnet known as?
A) Toroid
B) Lodestone
C) Haematite
D) Solenoid
Which of the following statements is true?
A) The north pole of a magnet will attract the north pole of another magnet.
B) Artificial magnets can be made from non-magnetic materials also.
C) Lodestone is an artificial magnet.
D) Isolated magnetic poles do not exist.
In which direction does a magnet always point when suspended freely?
A) South-West
B) North-South
C) East-West
D) West-South
Where is the force of attraction of a magnet the maximum?
A) At all sides
B) All over the magnet
C) At its poles
D) At its centre
What is the special property of magnetic substances?
A) They are repelled by magnets.
B) They are attracted by magnets.
C) They are both attracted and repelled by magnets.
D) They cannot be made into magnets.
Which of the following will NOT be attracted by a magnet?
A) Iron
B) Nickel
C) Gold
D) Cobalt
A How is a compass useful to us?
A) In finding the altitude of a place
B) In finding only the north of a place
C) In finding all the directions of a place
D) In making artificial magnets
Which of the following ways will NOT cause a magnet to lose its magnetism?
A) Heating it strongly over a flame
B) Dropping it on the floor repeatedly
C) Coating it with a layer of oil
D) Hitting it with a hammer repeatedly
a natural magnet
magnetite
horse shoe
circular
U shaped
there are how many poles in a magnet
1
5
3
2
_______ is a natural magnet
Magnetite
Iron
Poles
All natural magnets are
Strong magnets
Weak Magnets
Bar shaped magnets
All of these
When two same poles are brought together
They attract each other
They repel each other
They become cold
They align in N-S direction
What is the name of a magnet created by wrapping a current-carrying wire around a ferromagnetic core?
Temporary magnet
Electromagnet
Permanent magnet
Which of the following gets attracted to a magnet?
Copy book
Silver spoon
Comb
Common pins
The North end of the freely suspended magnet points towards -------?
Geographical North
Geographical South
Geographical East
Geographical West
____________is a device used by pilots and navigators used to find the direction.
barometer
thermometer
magnetic compass
none
Which of the following gets demagnetised when a powerful magnet is kept near it
Plastic ruler
Compact disc
Glass tumbler
Wood
electric bell is an example of _____________magnet.
Bar magnet
Cylindrical magnet
Electromagnet
Horseshoe magnet
