Low Mass Stars

Low Mass Stars

by Tim Gault

Multiple Choice

What is a large celestial body that is composed of gas and that emits light from nuclear fusion?

• Nebula

• Star

• Galaxy

• Planet

Multiple Choice

What is a large celestial body that is composed of gas and that emits light from nuclear fusion?

• Nebula

• Star

• Galaxy

• Planet

Multiple Choice

The Hertzprung Russell Diagram consists of two axis that are labelled...

• Luminosity and Size

• Luminosity and Temperature

• Luminosity and Age

Multiple Choice

The category that contains the most stars is...

• Main Sequence

• Supergiants

• Giants

Multiple Choice

Which category is our Sun located in?

• White Dwarfs

• Supergiants

• Main Sequence

• Giants

Multiple Choice

What color of star is the hottest?

• Blue

• Red

• Yellow

• Orange

What affects luminosity?

• Temperature: As temperature increases, luminosity increases.

• Size: As size increases, luminosity increases.

• Most Luminous? Large and Hot

• Least Luminous? Small and Cool

Multiple Choice

What is the approximate surface temeprature of the sun according to the HR diagram?

• 5,500 K

• 6,000K

• 7,200 K

• 15,000K

Multiple Choice

Would the surface temperature of a red supergiant be higher or lower than a white dwarf?

• Higher

• Lower

Poll

What is the color of the stars with the highest surface temperature?

• Red

• Yellow

• White

• Blue

Multiple Choice

How is it possible for white dwarf stars to have a lower luminosity than the sun, even though the sun has a cooler surface temperature.

• The sun is smaller than a white dwarf.

• The sun is larger than a white dwarf.

Multiple Choice

Star A has a surface temperature of 10,000K and medium brightness. What color is it?

• White

• Red

• Yellow

• Blue

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