everyday science MCQ #1780

The kilowatt-hour is a unit of:

everyday science MCQ #1780

  1. Question 1

    Q1. The kilowatt-hour is a unit of:

    • A) Time
    • B) Mass
    • C) Power
    • D) Energy

    Answer: Energy

    Explanation: The kilowatt-hour (kWh) is a unit of energy equal to 3.6 × 10⁶ joules, representing the work done by a 1-kilowatt device operating for one hour.