Physics Quiz - Magnetism
1. Magnetic materials are:
A
only made of iron
B
made from any metal
C
iron, nickel and cobalt
2. The small groups of atoms that behave like small magnets inside a large magnet are called:
A
iron filings
B
domains
C
poles
3. In unmagnetised steel, the domains:
A
are aligned in the same direction
B
are in different directions
C
are not present
4. In a magnet, the domains:
A
are aligned in the same direction
B
are in different directions
C
are not present
5. To demagnetise a magnet, one can:
A
drop or hit it for a period of time
B
heat it for some time
C
both of the above
6. The ends of a magnet are called:
A
fields
B
poles
C
domains
7. Unlike poles:
A
attract
B
have no effect on each other
C
repel
8. Like poles:
A
repel
B
have no effect on each other
C
attract
9. The north pole of a magnet will attract:
A
the north pole of a magnet
B
the south pole of a magnet and any unmagnetised iron
C
both poles of a magnet and any magnetic materials
10. If two south poles are close to each other, they will:
A
attract each other
B
repel each other
C
have no effect on each other
11. Repulsion between a magnet and another object indicates that:
A
the other is made of a metal that is non-magnetic
B
one has a north pole and the other has a south pole
C
the other object is also a magnet
12. The lines of a magnetic field go from:
A
north pole to south pole
B
south pole to north pole
C
in any direction
13. The magnetic field of a magnet:
A
is always as strong anywhere around a magnet
B
only exists on the poles themselves
C
weakens as the distance from the magnet increases
14. If pole A of a magnet repels pole B of a second magnet, and pole B attracts pole C of a third magnet, what can be said about pole A and pole C?
A
A and C are both north poles
B
A and C are like poles
C
A and C are unlike poles
15. If a person winds a coil of wire around a steel rod, and then passes an electric current through the wire, then:
A
the steel rod becomes an electromagnet
B
the steel rod becomes electrified and should not be touched
C
the wire becomes magnetised
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