Why will a magnet not attract pieces of paper?
Because paper is not magnetic
Because paper is not sticky
Because paper is not strong
None of these
Which material is used to make a temporary magnet?
Steel
Nickel
Cobalt
Soft iron
Which of the following is an Artificial magnets?
Bar magnet
Horse shoe magnet
U-Shaped magnet
All of these
What advantage does an electromagnet have over a permanent magnet?
A permanent magnet cannot be used to pick up nickel.
An electromagnet can be used for picking up more metals.
An electromagnet can be switched off.
An electromagnet is lighter.
Magnet A can hold three steel paperclips; Magnet B can hold five. Which is the strongest?
Magnet A
Magnet B
They are both equally strong
Ceramic magnets are used in:
Dynamo
Generator
Computer
Commutator
Where are the field lines most concentrated around a bar magnet?
At the centre
At both poles
At the South Pole
At the North Pole
Which pole of a magnet in a compass points north?
Neutral pole
South Pole
North Pole
Both 1 and 3
