Reach for the stars quiz1

What is the speed of light?

• 3 × 10⁵ km/s

• 3 × 10⁸ m/s

• 3 × 10¹⁰ km/s

• 3 × 10² km/s

What is a light year?

• Short year

• Speed of light

• Distance light travels during one year.

How many kilometers is 1 light year?

• 10 kilometers

• 10 million kilometers

• 10 billion kilometers

• 10 trillion kilometres

What is 1 AU?

• Distance between Center of Earth and Center of our Sun?

• Distance between Earth and Mars

• Distance between Mars and Jupiter

• Distance between Asteroid belt and oort cloud

If a star is 100 light-years away, the light we see from it tonight left that star 100 years ago and is just now arriving in our neighborhood. TRUE OR FALSE

• TRUE

• FALSE

Delay in arrival of light to earth provides answer to which of the following questions?

• What’s actually happening in Universe for another 500 years

• The closer out in space we look, the longer the light has taken to get here, and the longer ago it left its place of origin.

• The farther out in space we look, the longer the light has taken to get here, and the longer ago it left its place of origin.In this way, we can reconstruct the history of the cosmos and get a sense of how it has evolved over time

How long does light take to travel from Moon to Earth?

• 5 mins

• 1.3 secs

• 10 sec

• 15 secs

What is the name of the nearest large galaxy to Milky Way?

• Tadpole Galaxy

• Sombrero Galaxy

• Andromeda Galaxy

• Whirlpool Galaxy

How far is Sun from the center of our galaxy?

• 10,000 light years

• 15,000 light years

• 20,000 light years

• 30,000 light years

Which star cluster is this and how many stars are in this cluster(approx)?

• M9 and 250,000 Stars

• M1 and 500,000 Stars

• M0 and 250,000 Stars

• M4 and 100,000 Stars