Kilowatt-hours measure energy. Which term best describes this measure?

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Multiple Choice

Kilowatt-hours measure energy. Which term best describes this measure?

Explanation:
Energy is what kilowatt-hours quantify—the total amount of electrical work that can be or has been done over a period. A kilowatt-hour represents 1000 watts sustained for one hour, which equals about 3.6 million joules. This distinguishes it from power, which is the rate at which energy is used (measured in watts). Voltage and resistance describe other electrical properties (potential difference and opposition to current, respectively) and aren’t measures of energy. So kilowatt-hours describe energy.

Energy is what kilowatt-hours quantify—the total amount of electrical work that can be or has been done over a period. A kilowatt-hour represents 1000 watts sustained for one hour, which equals about 3.6 million joules. This distinguishes it from power, which is the rate at which energy is used (measured in watts). Voltage and resistance describe other electrical properties (potential difference and opposition to current, respectively) and aren’t measures of energy. So kilowatt-hours describe energy.

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