Download OP/IP27 Stars HR life of stars WS

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Transcript
OP27
HR Diagram
Info: HR stands for Hertzsprung-Russell.
Directions: Use the HR diagram on page R63 in your textbook to answer the following
questions.
1. Where on the temperature scale is the Sun located? _________________________
2.
What is the difference in temperature for white dwarfs compared to red giants?
_____________________________________________________________________
3.
What stars have the highest surface temperature?
_______________________________
4.
What stars have the lowest surface temperature?
________________________________
5.
List the stars’ color from hottest to coldest:
Temperature
Directions: Use the illustration on page 465 in your textbook to answer the following questions.
1. Draw and label the order of a low-mass star.


Color
Hottest
2.
Draw and label the order of a high-mass star.

Coldest

6.
Most of the stars in the diagram are classified as
________________________________
7.
What is the definition of Main Sequence?
______________________________________________________________________
____________________________________________________________________
_____________________________________________________________________
8.
The Sun is classified as which type of star?___________________________________
9.
Explain the difference of luminosity white dwarfs and blue supergiants and why.
______________________________________________________________________
______________________________________________________________________
___________________________________________________________________

10. Explain the difference of luminosity and how it relates to temperature and size for red
dwarfs and blue supergaints.
______________________________________________________________________
______________________________________________________________________
___________________________________________________________________
Life Cycle of Stars

IP27
3.
What kind of star is the Sun, low or high mass? _______________________________
4.
What will the Sun look like in 5 billion years? ________________________________
5.
What will the Sun become at the end of its life? _______________________________
6.
What makes a high mass star become a black hole instead of a neutron star?
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________