11581832
Descrição
Quiz por Jeffrey Piggott, atualizado more than 1 year ago
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Criado por Jeffrey Piggott
mais de 6 anos atrás
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Questão 1
Questão
Which statement is not true?
Responda
-
A south pole repels a north pole.
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A south pole repels a south pole.
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A north pole attracts a south pole.
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A north pole repels a north pole.
Questão 2
Questão
Which pair of materials are both magnetic materials?
Responda
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silver and gold
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iron and plastic
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copper and steel
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iron and steel
Questão 3
Questão
Which of these changes will make an electromagnet stronger?
Responda
-
Use more coils of wire.
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Use a smaller current.
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Use a wooden core.
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Use fewer coils of wire.
Questão 4
Questão
Which of these is NOT a reason why electromagnet are used?
Responda
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They can be switched off.
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They are more expensive.
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Their strength can be controlled.
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They can be very strong.
Questão 5
Questão
A magnetic field is:
Responda
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a piece of ground with lots of iron in it.
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the space around a magnet where it attracts magnetic materials.
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the space around a magnet where it attracts all metals.
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the space around a magnet where it repels magnetic materials.
Questão 6
Questão
Which diagram shows the shape of the magnetic field of a bar magnet?
Responda
Questão 7
Questão
The direction of a magnetic field is from:
Responda
-
the south pole to the north pole.
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the north pole to the south pole.
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the west pole to the east pole.
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the east pole to the west pole.
Questão 8
Questão
The Earth’s north magnetic pole is:
Responda
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near the North pole.
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near the South pole
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at the North pole.
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at the South pole.
Questão 9
Questão
Magnetism is a non-contact force.
Responda
- True
- False
Questão 10
Questão
Two pieces of iron attract each other.
Responda
- True
- False
Questão 11
Questão
An electromagnet needs electricity.
Responda
- True
- False
Questão 12
Questão
Bar magnets are permanent magnets.
Responda
- True
- False
Questão 13
Questão
A magnet will attract a steel can.
Responda
- True
- False
Questão 14
Questão
Electromagnets often have iron cores.
Responda
- True
- False
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