everyday science MCQ #3594

A light-year is a unit of:

everyday science MCQ #3594

  1. Question 1

    Q1. A light-year is a unit of:

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

    Answer: Distance

    Explanation: A light-year is the distance that light travels in one year in a vacuum — approximately 9.46 trillion kilometers — making it a unit of distance, not time.