Astronomy

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

• Stars Get Larger
• Stars get Colder
• Stars get hotter

Which of these stars is hottest?

• Red Star
• Yellow Star
• Orange Star
• Blue Star

Which category is our Sun located in?

• White Dwarfs
• Supergiants
• Main Sequence
• Giants

The category that contains the most stars is...

• Main Sequence
• Supergiants
• Giants

Which star has the lowest temperature?

• A
• B
• C
• D

Which spectral class does our star, the sun, belong to?

• M
• K
• G
• F

Which is NOT true about a nebula?

• They are the first stage in a star's life cycle

• They experience nuclear fusion

• They are a cloud of gas and dust

• They do not show up on an HR Diagram

Which is NOT a type of galaxy?

• Elliptical
• Spiral
• Oblong
• Irregular

A light year is related to ...

• Time
• Energy
• Distance
• Mass

How can a scientist tell how quickly and object in space is moving and whether or not its moving toward Earth?

• redshift and blueshift
• ultraviolet and infrared
• absorption and radiation
• absorption and emission