P5 Flashcards

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1
Q

Name the 4 magnetic metals.

A

Iron, Steel, Nickel, Cobalt

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2
Q

what is the name of the process of inducing magnetism in an unmagnetised ferromagnetic material without any contact with the magnet?

A

Magnetic Induction

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3
Q

Define magnetic induction

A

The process of inducing magnetism in an unmagnetised ferromagnetic material without any contact with the magnet.

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4
Q

Induced magnetism is a ________ process.

A

temporary

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5
Q

What are insulators?

A

materials where electrons are not free to move

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6
Q

Give some examples of an insulator

A
  • plastic
  • wood
  • rubber
  • glass
  • cotton
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7
Q

_____________ is when charge “builds up” on an object and doesn’t move.

A

Static electricity

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8
Q

Two different rods will _______ each other if they have _______ charge.

A

attract, different

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9
Q

Two different rods made of the same material will _______ each other due to having the _______ charge.

A

repel, same

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10
Q

A charge builds up on the dome due to electrons being “_______” by the belt. If a big enough ________ is built up then the voltage becomes high enough to _______ the air molecules and the electrons “________” down to Earth - this is an electric ________.

A

rubbed off, charge, ionise, jump, current

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11
Q

Define electric current

A

The rate of flow of electric charge

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12
Q

I = Q/t
Change this into a word equation.

A

Current = charge/time

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13
Q

The energy given to electric charge to make them move is called?

A

voltage/potential difference

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14
Q

Define electrical resistance

A

Electric current prevented from flowing

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