11581832
Beschreibung
Quiz von Jeffrey Piggott, aktualisiert more than 1 year ago
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Erstellt von Jeffrey Piggott
vor mehr als 6 Jahre
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Frage 1
Frage
Which statement is not true?
Antworten
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A south pole repels a north pole.
-
A south pole repels a south pole.
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A north pole attracts a south pole.
-
A north pole repels a north pole.
Frage 2
Frage
Which pair of materials are both magnetic materials?
Antworten
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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
Frage 3
Frage
Which of these changes will make an electromagnet stronger?
Antworten
-
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.
Frage 4
Frage
Which of these is NOT a reason why electromagnet are used?
Antworten
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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.
Frage 5
Frage
A magnetic field is:
Antworten
-
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.
Frage 6
Frage
Which diagram shows the shape of the magnetic field of a bar magnet?
Antworten
Frage 7
Frage
The direction of a magnetic field is from:
Antworten
-
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.
Frage 8
Frage
The Earth’s north magnetic pole is:
Antworten
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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.
Frage 9
Frage
Magnetism is a non-contact force.
Antworten
- True
- False
Frage 10
Frage
Two pieces of iron attract each other.
Antworten
- True
- False
Frage 11
Frage
An electromagnet needs electricity.
Antworten
- True
- False
Frage 12
Frage
Bar magnets are permanent magnets.
Antworten
- True
- False
Frage 13
Frage
A magnet will attract a steel can.
Antworten
- True
- False
Frage 14
Frage
Electromagnets often have iron cores.
Antworten
- True
- False
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