Quiz: Stars and Interstellar Medium

A large cloud of gas and dust in interstellar space; the predecessor to stars...

• Constellation

• Black hole

• Nebula

• Galaxy

In the diagram given, what happens as we move to the left?

• Stars Get Larger

• Stars get Colder

• Stars get hotter

Very hot stars are what color? 

• Blue

• Yellow

• Red

• Orange

A large celestial body made of gases that emits light due to nuclear reactions is called -

• a galaxy

• a nebula

• a comet

• a star 

Which of the following is a star in our solar system?

• The Big Dipper

• Orion

• The Sun

• Draco

Why does the sun appear bigger than all other stars?

• It is the biggest star in the universe.

• It is Earth's closest star.

• All other stars are much smaller than our star.

• The sun is the only star we can see.

What is a star?

• collection of dust that gives off heat and light

• huge ball of hot, glowing gas that gives off heat and light

• ball of electricity that gives off heat and light

• a bright burning planet that gives off heat and light

Which stars are cooler?

• red

• blue

• yellow

The color of the star tells us its 

• composition

• Temperature

• Luminosity 

• Mass

What is apparent brightness?

• The measure of how bright a star appears to an observer on Earth.

• How far away a star is from Earth.

• The brightness of a star.

• A measure of how bright the star would be if all stars were the same distance from Earth.