Download Understanding Light Years – Show ALL your work on

Understanding Light Years – Show ALL your work on a separate sheet of paper Convert each number of light years to kilometers. Remember: 1 light year = 9,500,000,000,000 km 1. 6 light years 2. 4,500,000 light years Convert each number of light years to miles. Remember: 1 light year = 5,900,000,000,000 miles 3. 7 light years 4. 38,000,000 light years 6. 11,003,000,000,000 km 8. 63,100,000 mi Convert each number of kilometers to light years. 5. 23,000,000,000,000 km Convert each number of miles to light years. 7. 8,900,000,000 mi Applying Light Years – Show ALL your work on a separate sheet of paper 9. The distance from the Milky Way to the nearest spiral galaxy, the Andromeda Galaxy, is about 2,000,000 light years. How far is this in miles? 10. The entire known universe is estimated to be 1,170,000,000,000,000,000,000,000,000 miles across. How many light years is this? How do the most distant visible objects in space give us an estimate of the age of the universe? *Bonus! Pluto, until very recently farthest planet in the solar system, is about 3,670,000,000 miles from the sun. How many hours does it take sunlight to reach Pluto?