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15 questions
1. Which is an example of a magnetic substance?
Iron
Cobalt
Nickel
None of these
All of these
2. ______________ is the only natural magnet
3. When a magnet is suspended freely it aligns itself in __________ direction?
North
East
North - east
South - west
North - South
4. Like poles of a magnet _________ each other.
Attract
Repel
All of these
None of these
Both a and b
5. When a bar magnet is brought near iron dust, most of the dust sticks
near the middle
equally everywhere
near two ends
at the middle and ends
6. Choose the wrong statement
Heat can destroy magnetic properties of a magnet.
Magnets are made up of different materials and different shapes.
There is a maximum attraction in middle of a magnet.
Magnetite does not show magnetic properties.
7. The magnetic properties of a magnet cannot be destroyed by
hammering
heating
dropping on a hard surface
boiling
8. Which two ends of a magnet are called magnetic poles?
North pole
South pole
North and south pole
Self demagnetisation
9. _____________ is the surest of magnetism.
Attraction
Repulsion
Rotation
None
10. _______________ is a device used by pilots and navigators to find directions
Barometer
Thermometer
Magnetic compass
None of these
11. Which of the following does not get demagnetized when a powerful magnet is kept near it
CD
Flash drive
Cellphone
Comb
Where was natural magnet discovered?
In China
In India
In Greece
In Japan
13. Who discovered the natural magnet?
A shepherd named magnes
A shepherd name maxwell
A shepherd name Greek
Vasco da gama
14. Substances that stick to magnets are called
Non magnetic substance
Magnetic substance
Magnetic compass
None of these
15. What does magnetite contain?
Iron
Wood
Rubber
Plastic
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