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| Name:_________________________ | Date:_______________ | |
Magnets | ||
A.
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Write the number of the correct answer in the brackets.
B. 
1.
A freely suspended bar magnet will ________.
( )
(1)
(2)
(3)
(4)
come to rest in a north-south direction
keep rotating clockwise
sway from side to side
stay in position with no movement
2.
Which statement about magents is true?
( )
(1)
(2)
(3)
(4)
Like poles attract.
Magnets are always bar shape.
All magnets are natural magnets.
Unlike poles attract.
3.
The pull of a magnet is strongest at ________.
( )
(1)
(2)
(3)
(4)
the north pole
the south pole
both the poles
all points on the magnet
4.
Which of the following is an application of magnets?
( )
(1)
(2)
(3)
(4)
Separate iron from other objects.
Material for construction workers helmets.
Detect different types of wood.
Checking glass transparency.
5.
An iron nail can be magnetised by ________.
( )
(1)
(2)
(3)
(4)
knocking it against a magnet
suspending it freely in the air
passing an electric current through it
stroking it with a magnet
Write "T" for true and "F" for false.
C.
1.
When magnets attract, there are magnetic forces.
( )
2.
Magnets can attract all metallic substances.
( )
3.
A magnet has either north and south poles or east and west poles.
( )
4.
The needle in a compass is a magnet.
( )
5.
Magnets are being used in loudspeakers.
( )
Fill in the blanks with the most suitable word.
1.
Explorers use an instrument called a _______________ to help them with direction.
2.
Magnets are either _______________ or artificial.
3.
Substances that are attracted by magnets are known as _______________ substances.
4.
The north pole of a magnet will attract the _______________ pole of another magnet.
5.
Magnets must be stored _______________ to ensure they maintain their magnetism.