Download NAME:______ Period:______ Unit 10

NAME:_____________________________________________Period:__________
Unit 10-11 Review Sheet
1. What is the universe made up of?
2. What does light year measure?
3. Why do we use light year instead of kilometers?
4. Change the following number 78,000,000 to scientific notation.
5. Write 1.90 x 108 in standard number form.
6. Define Nebula:
7. Main Sequence Star turns into a _________when it loses all its hydrogen.
8. What type of star is our Sun on the H-R diagram?
9. Which group of stars on the H-R diagram is the
brightest?
10. After a star dies what happens to the remains? I
11. Our Sun is at what stage of it’s life cycle?
12. The ___________________ of the star is most
dependent on the star’s mass.
13. Which group of stars on the H-R diagram do
most stars start out as?
Label the Star’s Life Cycles below:
14. Sun-Like Star--->___________--->___________--->___________--->___________
15. Huge Star--->___________--->___________--->___________
16. Giant Star --->___________--->___________--->___________
17. Define Absolute magnitude:
18. Define Apparent magnitude:
19. The __________________ is a region in space where the gravitational pull is so
great that light cannot escape.
20. A region in space that is so dense that nothing, even light energy, can escape its
gravitational field is know as a ___________________.
21. What are the three type of galaxies?
22. The galaxy that has spiral arms with a bulge it the center is the ________________.
23. The galaxy that has an elongated shape is the __________________.
24. The galaxy with no shape is the _______________________.
25. The ________________ is an example of a galaxy with a spiral shape.
26. Earth is in which kind of galaxy?
27. Define Quasar:
28. What did Copernicus think?
29. Define Theory:
30. Which theory of the universe is the most accepted by all the scientists?