Stars

Multiple Choice

The H-R diagram classifies stars based on what factors?

• Temperature and luminosity

• Number of planets

• What constellation they're in

• Temperature and fusion

Multiple Choice

Stars that are brighter are usually...

• Hotter

• Bigger

• Smaller

Multiple Choice

Which star is the coldest?

• Yellow Star

• Red Star

• Orange Star

• Blue Star

Multiple Choice

Our sun is yellow. A star colder than our sun would be...

• Red

• Yellow

• White

• Blue

Multiple Choice

Compared to a red giant star, a blue supergiant is...

• Hotter and brighter

• Hotter and not as bright

• Colder and brighter

• Colder and not as bright

Multiple Choice

Our sun is what kind of star?

• Blue giant

• Red giant

• Main sequence

• White dwarf

Multiple Choice

Blue stars are the _____________.

• hottest

• coolest

• smallest

Multiple Choice

Which is the correct order of stars from COOLEST to HOTTEST?

• blue, white, yellow, orange, red

• red, yellow, blue, white, orange

• red, white, yellow, orange, blue

• red, orange, yellow, white, blue

Multiple Choice

Which of the following is NOT a characteristic used to classify stars?

• Color
• Temperature
• Size
• Shape

Multiple Choice

Infer:

Naos is a star in the Argos constellation. It has a very deep Blue color. What do you think is the approximate temperature of Naos?

• Between 3,000 K - 5,000 K ( it is a cool star)

• Between 25,000 K - 50,000 K ( it is a hot star)