5.2 GOW HR Diagram Practice

1. What is the topic of the graph?

• The Hertzsprung-Russell diagram shows a type of star's surface temperature (℃) compared to its brightness.
• The Hertzsprung-Russell diagram shows a type of star's internal temperature (℃) compared to its brightness.
• The Hertzsprung-Russell diagram shows the size of the star compared to its surface temperature (℃).
• The Hertzsprung-Russell diagram shows no relationship between a stars surface temperature (℃) and brightness.

Tags

NGSS.HS-ESS1-3

2. What is the X-axis?

• surface temperature (℃)
• brightness (℃)
• surface temperature
• brightness

3. What is the Y-axis?

• surface temperature (℃)
• brightness (℃)
• surface temperature
• brightness

4. What is the temperature of Polaris?

• 5000 ℃
• 6000 ℃
• 10000 ℃
• 20000 ℃

5. What type of star is Rigel?

• Supergiant
• Main Sequence
• Giant
• White dwarf

6. What do you notice about the temperature on the X-axis on the HR Diagram?

• It increases from left to right
• it increases from right to left
• it increases from bottom to top
• it increases from top to bottom

7. Choose the best description for the Sun compared to all other stars on the HR Diagram?

• The sun is brighter but cooler than most stars.
• The sun is an average temperature and average brightness.
• The sun is hotter and brighter than most stars
• The sun is average temperature but brighter than most stars.

8. Which star is hotter and brighter than our Sun?

• Barnard's Star
• Spica
• Betelgeuse
• Sirius B

9. Which statement is true about Antares and Procyon B?

• Antares is brighter and hotter than Procyon B
• Antares is brighter and cooler than Procyon B
• Antares is dimmer and hotter than Procyon B
• Antares is dimmer and cooler than Procyon B

10. Luminosity/brightness is determined by...

• distance away from Earth
• how much nuclear fusion the star produces
• magnetic force
• the temperature of the star