Components of Universe/HR D

About 13.7 billion years ago everything in space was once together before the big explosion which caused the creation of the Universe and its components. This is known as...

• Big Ben Theory

• Mr. L's Theory

• Big Bang Theory

A collection of dust and gases where stars can form is called a:

• Galaxy

• Nebula

• Black Hole

Stars are classified on the HR diagram by:

• luminosity & brightness

• temperature & luminosity

Choose the best description of Bernard's star.

• Bernard's star is both cooler and brighter than the sun.

• Bernard's star is both cooler and dimmer than the sun.

• Bernard's star is neither cooler or dimmer than the sun.

Which star has the lowest temperature?

• A

• B

• C

• D

Which star is considered a Main Sequence Star?

• A
• B
• C
• D

Which star has the lowest luminosity?

• A
• B
• C
• D

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

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What type of galaxy is this?

• Spiral

• Elliptical

• Irregular

Stars are formed in a large cloud of gas and dust called a

• cumulonimbus cloud

• nebula

• black hole