WorksheetsScales of the Universe
Total questions: 9
Worksheet time: 9mins
★What is the largest unit of metric measurement for distance on Earth?
Light years
Astronomical Unit (AU)
Kilometres
Gigaparsec (Gpc)
★ What is an Astronomical Unit (AU)? (Two answers are correct)
Distance from the Sun to Earth
Distance from the Sun to the very edge of the Solar System
384,400 km
149,597,870.7 km
9,000,000,000,000 km
★ What scale of measurement does this line represent?
A light year
A parsec
An Astronomical Unit
A kilometre
★ Where in the universe is the Astronomical Unit most useful?
For interstellar distances
On Earth
Within our solar system
For intergalactic distances
★ What is the speed of light?
~100 kilometres per second
~300,000 kilometres per second
~10,000 kilometres per second
~300,000,000 kilometres per second
★ What is a light year? (Two correct answers)
Buzz from Toy Story
A unit of time
Distance light travels in one Earth year
8.3 minutes
9,000,000,000,000 km or 63,000 AU
★ When you look out into space, you are seeing the (a) . (Image is a hint. The answer is not dinosaurs.)
★ Where in the universe is the light year scale of measurement able to be used?
Only in the solar system
Only interstellar distances (between stars)
Only intergalactic distances (between galaxies)
Throughout the entirety of the universe, i.e. in the solar system, interstellar distances, and intergalactic distances.
★ Describe why alternate scales (like AU and light years) are used to measure distance in the universe. Why can’t we just use kilometres?
