GCSE Physics

The kilo-watt (kW)

As with other units, we can add prefixes in front to make larger all smaller quantities. The kilo-watt (kW) is perhaps the most widely used of these:

1 kW = 1,000 W
1 kilowatt = 1,000 watt

Note the small k but large W.

N.B. Never confuse the kW (a unit of power) with the kWh (energy).

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