7J - Electrical cicuits Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What do you use to measure a current in a circuit?

A

CURRENT is measured using a AMMETRE

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2
Q

What is a current?

A

A CURRENT is a STREAM OF CHARGED PARTICLES/ELECTRONS.

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3
Q

How do we measure voltage?

A

We measure VOLTAGE with a VOLTMETRE

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4
Q

what does voltage do?

A

VOLTAGE gives the ‘PUSH’ and ENERGY in a circuit

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5
Q

What is resistance?

A

The RESISTANCE of a circuit is a way of saying how EASY OR DIFFICULT IT IS FOR ELECTRICITY TO FLOW.

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6
Q

How do we make a current smaller?

A

you would decrease the CURRENT by putting a RESISTER IN THE CIRCUIT

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7
Q

What is a series circuit?

A

A SERIES CIRCUIT is one loop; the current is the same everywhere and if one bulb breaks, none of them will work.

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8
Q

What is a parallel circuit?

A

a PARALLEL CIRCUIT is where it has more than one loop; if a bulb breaks, all others stay on; the current is smaller within each loop

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9
Q

What colour is the earth wire?

A

the EARTH WIRE is GREEN and YELLOW.

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10
Q

What colour is the live wire?

A

the LIVE WIRE is BROWN

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11
Q

what colour is the neutral wire?

A

the NEUTRAL WIRE is BLUE

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12
Q

What can electricity cause if careless with it?

A
  • Fires
  • Burns
  • Shocks that can stop your heart or lungs working.
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