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STARS
1. The smallest part of an element is called a/an ________________________________.
2. Label the 3 particles of the atom and indicate each particle’s charge.
=
__________charge
A.
=
=__________ charge
.
C.
B.
=
__________ charge
5. To find the number of protons in an atom, you would look at its ______________
_______________.
6. The atomic mass of an element is the total of the ________________ plus the
________________.
7. Why are the atoms below called
ions?___________________________________________________
Look at the picture. Identify which is Fusion and which is Fission
8.__________________ =
= ______________________9.
9. Identify each as Fission or Fusion or Both:
A_________________ releases energy
nuclear reactors
B_________________makes stars shine
come together
C_________________ atom nuclei split apart
cores of stars(sun)
A
C
B
D
D_________________ happens in
E__________________ atom nuclei
F__________________ occur in
10. Which letter on the Herz.-Russell Diagram
shows where
the brightest and hottest stars would
be? _________
11. Which is brighter, a white dwarf or a red
giant?__________
12. Which is hotter, a white dwarf or a red
giant?____________
13. Name one main sequence
star__________________
14. What does magnitude measure?______________________
15. How does our sun compare to other stars in………
In
size?_____________________________________
In
hotness?__________________________________
In
brightness?________________________________
Label the stages in the lifecycle of a star:
16. The less massive stars end their lifecycle as a _____________ ___________________.
17. The most massive stars will end up as a ___________________ _______________.
18. When nuclear fusion is occurring in a star, the element_____________ fuses to
form______________.
19. When objects are moving away, the spectrum lines are displaced toward longer
wavelengths of light, this is called a ______________shift.
20. When objects are toward earth, the spectrum lines are displaced toward shorter
wavelengths, this is called a ______________shift.
21. Which shift suggests the universe is expanding?_________________________________
22. What is a spectral fingerprint and what does it tell us?
__________________________________________
________________________________________________________________________
____________
23. What does the Big Bang Theory
explain?______________________________________________________
24. What are 2 pieces of evidence for the Big Bang Theory?
A.______________________________________________________________________
____________
B.
______________________________________________________________________________
____
25. What did the universe look like before the Big
Bang?____________________________________________
26. What scientist used red shift spectrums to provide evidence for the Big
Bang?________________________
27. Where could you find the Hubble telescope?
__________________________________________________
28. Why is the Hubble telescope better than ones on mountains on
Earth?_____________________________
________________________________________________________________________
____________