Big Bang theoy

What law purposed that all the galaxies are accelerating away from each other.

• Pascal's law
• Hubble's law
• Newton's law
• Arcamedie's law

This thermal energy left over from the big bang is visible on your Tv set in the form of static.

• Solar radiation 
• UV radiation 
• cosmic background radiatiion
• nuclear radiation 

A light year is a unit of

• time
• distance 
• mass
• density 

Write this number is scientific notation 20,000

• 2.0 x 10⁴
• 2.0 x 10⁵
• 2.0 x 10³
• 20. x 10⁴

If  Proxima Centauri (The nearest star to earth) is 4.2 light years away how long will it take for that light to reach earth?

• less then 3 years
• less then 4 years
• more then 4 years 
• exactly 5 years

90% of the matter in our universe is....

• visible matter
• dark matter
• red matter
• Grey matter

Dark matter got its name because.......

• Its has a gravitational pull and we can see it
• It has a gravitational pull and we cannot see it
• It has no gravitational pull and we can see it
• It has no gravitational pull and we cannot see it 

This is responsible for the for the accelerating expansion of the universe......

• dark matter
• cosmic background radiation 
• dark enegry
• visible enegy

How long does it take light to get from the sun to earth?

• 8 hours 
• 2 years 
• 8 minutes 
• 12.5 seconds 

This galaxy is oval shaped

• elliptical galaxy 
• spiral galaxy
• irregular gallaxy