Download Astronomy Unit Test Review Sheet

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Astronomy Unit Test Review Sheet
1. Describe how each of the following scientists contributed to Astronomy (1-1):
a. Galileo
b. Brahe
c. Kepler
d. Newton
e. Hubble
f. Copernicus
g. Ptolemy
2. What is the difference between a reflecting and a refracting telescope? What other types of telescopes
do scientists use to gather information about space (1-2)?
3. What is a light year? Explain how it is used by scientists to measure objects in space (1-3).
4. List the 7 different types of electromagnetic radiation in order from shortest wavelength to longest
wavelength. Which are most dangerous to humans? Why?
5. Explain how constellations are used to organize the night sky (1-3). How can people tell the direction
by looking at constellations?
6. List the colors of stars in order from lowest temperature to highest temperature (2-1).
7. Compare and contrast apparent and absolute magnitude? Which is most useful to scientists (2-1)?
8. What is another name for Polaris? Why was Polaris a useful navigation tool (1-3)?
9. Why do stars appear to be moving in a circle around Polaris? What type of motion is this? How do stars
actually move (1-3)?
10. What determines the lifecycle of a star (2-2)?
11. List the following types of stars from oldest to youngest: giant, supergiant, white dwarf, main sequence.
Explain the temperature ranges and luminosity ranges for each (2-2).
12. How do scientists believe the universe was formed (2-4)?
13. How long does it take for the Earth to rotate once on its axis? How long does it take for the Earth to
revolve around the sun?
14. Why do we experience different seasons at some parts of the Earth?
15. When does the Northern Hemisphere receive the most direct rays from the sun?
16. What is the Big Bang Theory (2-4)?
17. How does the sun generate energy? Explain this process (3-2).
18. How long does it take for the moon to revolve around the Earth and repeat the same phase? Why do we
see different phases of the moon from Earth?
19. List the 8 phases of the moon, starting with a New Moon.
20. What is a lunar eclipse? What is a solar eclipse?
21. Compare and contrast the 3 different types of galaxies (2-3)? What type of galaxy do we live in (Milky
Way)?
22. Draw a picture of the Earth’s orbit around the sun (use p 81 for help).
23. What does an H-R diagram tell you about a star (2-2)?
24. Where on the H-R diagram would our sun be located (2-2)?
25. For the Northern Hemisphere, when is the summer solstice? The winter solstice?
26. Using terms like tilt, axis, and direct light, explain why June 21 is a significant date in the Northern
Hemisphere.
27. Explain why the oceans experience high and low tides on Earth. How many tides will an area on Earth
experience each day? Draw a picture of Spring Tides and Neap Tides. Which one creates the highest of
high tides?