Kilowatt hour is the unit of:
Correct answer: D. Energy
- A. Power
- B. Force
- C. Momentum
- D. Energy
Explanation
One kilowatt hour is the work done (energy) in One hour by an agency whose power is one kilowatt. 1 kWh = (1000 watt) x (3600 s) 1kWh = 3600000 watt s = 3.6 x 10^6J =3.6 MJ
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About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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