DNT Flashcards

1
Q

Permanent Magnets

A

Keep their magnetism for an indefinite period of time.

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2
Q

Temporary Magnets

A

Lose their magnetism quickly.

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3
Q

Poles

A

The ends of a magnet where the magnetism is the strongest.

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4
Q

Magnetic Feild

A

The space in which the magnetic effect is felt.

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5
Q

Keepers

A

Iron bars that are placed between magnets to preserve the magnetic strength by providing paths for magnetic field lines between opposite poles.

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6
Q

What type of magnet is the earth?

A

Permanent

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7
Q

What is an electromagnet?

Where is used?

A
  • A temporary magnet that can be switched on and off.

- Metal recycling processes to move iron and separate to magnetic from non-magnetic material.

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8
Q

What is a solenoid?

A

A coil of wire (cylindrical) that forms a magnetic field when an electric current flows through it.

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9
Q

Conductor

A

A material that is used to carry electricity through an electric circuit.
E.g Wire

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10
Q

Electric Energy

A

The energy that flows through an electric circuit.

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