A light year is a unit of ?
Correct answer: C. distance
- A. Time
- B. Energy
- C. distance
- D. Mass
Explanation
A light-year measures distance, specifically the distance light travels in one year, about 9.46 trillion kilometres. Despite containing the word year, it is not a unit of time.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Astronomy and Space
Astronomy covers the structure and motions of the solar system, planets, satellites, comets, asteroids and meteoroids, together with gravity, eclipses, seasons and phases of the Moon. It also introduces stars, galaxies, nebulae, black holes, space telescopes and satellites, while distinguishing rotation from revolution and meteors from meteorites.
Practise Astronomy and Space
286 free Astronomy and Space MCQs from Everyday Science, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Everyday Science questions like this
Everyday Science is on 40 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Astronomy and Space questions
Which planet looks reddish in the night sky ?
Pluto is known as dwarf planet because which of the following reason/s:
Which scientist is known as modern father of Astronomy ?
What is the main composition of the sun?
Which of the followings planet can float on water?
What is the distance of the star Proxima Centauri from the planet Earth ________?