11 mark
Which of the lists of metals below contains only metals which are non-ferrous?
Iron, steel, nickel
Cobalt, copper, steel
Aluminium, brass, copper
Iron, tin, aluminium
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Simple Phenomena of Magnetism (CIE IGCSE Physics: Co-ordinated Sciences (Double Award))
Exam Questions
55 mins19 questions21 mark
Which of the following choices of metal would be suitable for:
- Use as a permanent magnet?
- Use as the core in an electromagnet?
|
Use as a permanent magnet |
Use as the core of an electromagnet |
|
|
A |
steel |
iron |
|
B |
steel |
steel |
|
C |
iron |
iron |
|
D |
iron |
steel |
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31 mark
Which of the lists below are metals that are ferrous?
aluminium and iron
steel and iron
steel and lead
tin and iron
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41 mark
Which statement about a permanent bar magnet is incorrect?
The S-pole attracts the N-pole of another magnet
The S-pole repels the S-pole of another magnet
It cannot repel a non-magnetic material
It is made from a soft magnetic material (such as soft iron)
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11 mark
A student makes a series of statements about a permanent bar magnet.
Which of them is true?
The North pole of a permanent bar magnet will repel the North pole of another magnet.
A permanent bar magnet must be made from a soft magnetic material.
A permanent bar magnet can repel a magnetic material.
The field lines of a permanent bar magnet cross each other where the field is strongest.
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21 mark
Extended tier only
A student lines up some permanent magnets with soft iron nails in between as shown in the diagram below.
What would the magnetic poles of locations X and Y be?
| X | Y | |
| A | north | north |
| B | north | south |
| C | south | north |
| D | south | south |
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31 mark
Which of the following statements could be used to describe something a permanent magnet could do?
It will repel non-magnetic materials.
It will repel non-ferrous materials.
It will attract ferrous materials.
It will have a single magnetic pole.
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41 mark
The diagram shows two bar magnets, stored with metal keepers across the ends. The keepers help to keep the magnets magnetised.
The material used for the keepers becomes strongly magnetised when placed in contact with the magnets, but does not remain magnetised when taken away from the magnets.
What is a suitable metal to use for the magnets and what is a suitable metal to use for the keepers?
| Metal for keeper | Metal for magnet | |
| A | steel | steel |
| B | iron | steel |
| C | steel | iron |
| D | iron | iron |
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11 mark
Extended tier only
A student has a collection of metal bars that keep sticking to each other. She suspects that they might be magnets, so she runs a test.
She holds end V of rod 1, near to each end of the two other rods. The ends are shown in the diagram below.
Her results are as follows:
End V:
- Repels end W
- Attracts end X
- Attracts end Y
- Attracts end Z
Which of the metal rods is a magnet?
1 and 2
2 and 3
1 only
2 only
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21 mark
Extended tier only
A teacher, Mr. Garrison, brings a horseshoe magnet near to an iron bar as shown in the diagram.
Is the iron bar attracted to or repelled from the horseshoe magnet?
Which diagram shows the polarity of the poles that are produced in the iron bar?
|
Rod |
Attracted / Repelled |
Pole Distribution |
| A | repelled |  |
| B | repelled |  |
| C | attracted |  |
| D | attracted |  |
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31 mark
A student carries out an experiment to find out which of four metal rods makes the best permanent magnet.
The rod is attached to the south pole of a permanent magnet, and then paper clips are attached to the rod. The number of paper clips that can be held by the rod is counted.
The permanent magnet is then removed from the rod, and the number of paper clips that remain attached are counted.
The results are summarised in the table below.
Which of the rods becomes the strongest permanent magnet?
| rod | number of paper clips held by the rod | |
| when the magnet is present | when the magnet is removed | |
|
A |
5 |
2 |
|
B |
4 |
3 |
|
C |
2 |
0 |
|
D |
3 |
2 |
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