idk

Question 1

What does a light year measure?

Answer 1

Distance light travels in one year

Question 2

Place the following distances in order from shortest to longest: 3.5 ly, 1,000,000 km, 3 million ly, 3 trillion km.

Answer 2

1,000,000 km, 3.5 ly, 3 trillion km, 3 million ly

Question 3

If an object is 4.1 light years from Earth, how long did it take the light to travel to Earth?

Answer 3

4.1 years

Question 4

Order the following objects in space from smallest to largest: Moon, Planet, Star, Galaxy, Universe.

Answer 4

Moon, Planet, Star, Galaxy, Universe

Question 5

How long does it take light to travel in one year?

Answer 5

6 trillion miles

Question 6

What unit of measure is used to measure the distance between stars?

Answer 6

Light years

Question 7

What unit is best to use for measuring distances within our solar system?

Answer 7

Astronomical units

Question 8

What is empirical evidence that supports the idea that the universe is expanding?

Answer 8

Red Shift

Question 9

Approximately how many stars in a galaxy?

Answer 9

Billions

Question 10

Approximately how many galaxies in the universe?

Answer 10

1 trillion