Test 1 Review

Question 1

Astronomical Unit

Answer 1

Distance form the Earth to the Sun. 150 million kilometers.

Question 2

Light Speed

Answer 2

300,000 KM per second

Question 3

How close is the nearest star to the sun?

Answer 3

4.2 light years

Question 4

How many light years would it take to span the milky way?

Answer 4

100,000

Question 5

How many light years to the Andromeda galaxy?

Answer 5

2.5 million

Question 6

If the sun were the size of a basketball what size would be the solar system?

Answer 6

Size of a campus

Question 7

How many stars are in the milky way galaxy

Answer 7

100 billion

Question 8

Size of the laniakea supercluser in light years

Answer 8

500 million

Question 9

If the universe’ history were condensed to a single day when would our solar system form?

Answer 9

At 4:00 PM

Question 10

When would life appear on earth?

Answer 10

5:20 PM

Question 11

When would multicultural life appear

Answer 11

8:40 PM

Question 12

When would modern human’s appear

Answer 12

11:59.59.8 PM

Question 13

How many au are in a light year?

Answer 13

63,000