Physics A-Level
kilowatt-hour
What kilowatt-hour means in Physics A-Level, as defined for OCR.
Definition of kilowatt-hour
Check what you remember
Read the wording for your board, then hide it and explain kilowatt-hour in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A unit of energy equal to the energy transferred by a 1 kW device operating for 1 hour.
Topics that use kilowatt-hour
- Power (OCR A-Level)
Related terms
- Efficiency
- Force and motion
- Mechanical power
- Power
- SI units and conversions
- Unit conversion of time
- Application of W = VIt to real components
- conversion between kW h and joules
Using kilowatt-hour in the exam
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