Which star property determines a star's color?

• Size

• Distance

• Brightness

• Temperature

What is the coolest (lowest temperature) star color?

• Red

• Blue

• Yellow

• Orange

Antares is a star with a very high ABSOLUTE magnitude. What causes it to have such a low APPARENT magnitude from Earth?

• It's very far from Earth

• It's very close to Earth

• The atmosphere blocks its light

Our sun is in which life cycle stage?

• Giant

• Supergiant

• White Dwarf

• Main Sequence

Tags

NGSS.HS-ESS1-1

Our sun has a low mass. Select the stages that it will not go through. Check all that apply

• Giant

• White and Black Dwarf

• Supergiant

• Black Hole

• Neutron Star

What is the correct description of the blue main sequence stars?

• Hot and Dim

• Hot and Bright

• Cool and Dim

• Cool and Bright

Which statement about the stars in the HR diagram is true?

• White Dwarfs are the coolest stars

• Red stars can be both hot and cool

• Blue stars can be big, but they are very cool

• Red giants are large, bright, and cool

Tags

NGSS.HS-ESS1-3

True or False: Only blue stars are bright

• True

• False

True or False: The biggest stars are the brightest

• True

• False

Star A and Star B have the same apparent magnitude. Star A is twice as far from Earth than Star B. Which statement about absolute magnitudes is correct?

• Star A and B have the same absolute magnitudes

• Star A must have a greater absolute magnitude

• Star B must have a greater absolute mangnitude