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4 cards from this section. Quick, good the night before a test.
What is the SI unit of power?
Think of how energy consumption is usually measured.
If a device uses 2000 Watts, how many kilowatts is it?
Remember, 1 kW = 1000 W.
What is the formula for calculating power?
Think about how we measure work and energy over time.
True or False: 1 kilowatt equals 1000 watts.
Recall the relationship between kilowatts and watts.
A 1000 W electric heater runs for 6 hours. How much energy in kWh does it consume?
Use the formula: Energy (kWh) = Power (kW) × Time (h).
If a generator produces 200 watts continuously, how much work can it perform in 5 hours?
Calculate work using the formula: Work = Power × Time. Convert hours to seconds first.
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