Light Years and Metres Quiz

How many metres are there in one light year?

If a star is 4.2 light years away from Earth, how many metres is this approximately?

Which of the following is a real-world application of measuring distances in light years?

• Measuring the distance between cities

• Calculating the distance to the Moon

• Determining the distance to distant stars and galaxies

• Measuring the height of a building

• 0.5 light years

• 1 light year

• 2 light years

• 3 light years

A planet is 0.5 light years away from Earth. How many metres is this?

If a star is 100 light years away, how many metres is this approximately?

A star is 8.6 light years away from Earth. How many metres is this approximately?

Which of the following best describes a light year?

• The time it takes for light to travel in one year

• The distance light travels in one year

• The speed of light in a vacuum

• The brightness of a star