H-R Diagram Worksheet

What is the independent variable?

• Luminosity
• Temperature

What is the dependent variable?

• Luminosity
• Temperature

What factor(s) affects the color of a star?

• Luminosity
• Temperature

What factor(s) affects the luminosity of a star?

• Size
• Temperature
• Surface Area

What is the approximate surface temperature of the Sun?

• 20,000 K
• 6,000 K
• 10,000 K
• 2,500 K

Is the surface temperature of white dwarf stars higher or lower than red super giants?

• Higher
• Lower

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

• Blue
• Yellow
• Red
• White

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

• Blue
• Yellow
• Red
• White

List the color of the stars from hottest to coldest:

• red, orange, yellow, white, blue
• blue, white, yellow, orange, red
• red, blue, yellow, white, orange
• blue, yellow, white, orange, red

Most of the stars on the H-R Diagram are classified as which type of star?

• White Dwarfs
• Red Super Giants
• Main Sequence
• Blue Giants