Electricity Flashcards

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1
Q

What is the current

A

It is the flow of electrons

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2
Q

What is a conductor

A

A material which allows electricity to pass through it

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3
Q

What is an insulator

A

A material which doesn’t allow electricity to pass through it

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4
Q

What is a short circuit

A

A circuit which has very low resistance, causing the circuit to set on fire

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5
Q

What is voltage

A

The voltage is the amount of electricity you are putting through the circuit

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6
Q

What is resistance

A

Resistance is the measure of how much force is slowing the flow of electrons

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7
Q

Draw out the circuit symbols

A

Draw them

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8
Q

What is a series circuit

A

It is a circuit in which the current across the whole circuit is the same but the voltage is split across all the components

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9
Q

What is a parallel circuit

A

It is a circuit which has two or more pathways. The current splits before joining back again at the other side of the circuit. If one bulb blows in a parallel circuit, the other bulb(s) will stay on

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10
Q

What is an electromagnet

A

It is a magnet which can be turned on and off. You can also vary the power of an electromagnet, depending on the voltage you put across it.

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11
Q

Give two ways to make an electromagnet stronger

A

Increase the number of coils you use to make it an electromagnet. Increase the voltage you put into the coils.

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12
Q

Give five examples of household items that use electricity

A

Could be: Xbox, kettle, phones, electric car, lights, electric instruments etc.

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13
Q

What is current measured in

A

Amps

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14
Q

What is voltage measured in

A

Volts

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15
Q

What is resistance measured in

A

Ohms

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16
Q

What does the resistance equal

A

Voltage/current

17
Q

Do the north and south poles of a magnet attract or repel

A

Attract

18
Q

Do the north and north poles or south and south poles of a magnet attract or repel

A

Repel

19
Q

What is a magnetic field

A

It is a space around a magnet in which magnetism acts