Download Scientific Notation Worksheet

Chapter 10 Study Guide – Integrated Science 1
Name:___________________________
Per:___________
Directions: You can earn 5 extra credit points on your test if you complete this ENTIRE study
guide. Every question must have an answer – no blanks allowed! If you do not know
the answer to a question, you must make an effort to find it – ask your friends, look in
your book, search the internet, ask me, ask another teacher. If you leave an answer
blank, or write nonsense, you will not earn any points. This is an ALL OR NOTHING
extra credit opportunity.
Engage: Star Pictures
1. What are constellations?
2.
What was the historical significance of constellations?
3.
Why are constellations useful today?
4.
How many constellations are recognized by the International Astronomical Union?
5.
What is Dark Sky Pollution?
6.
Why is Dark Sky Pollution a problem?
Explore: Stars at a Glance
7. How do astronomers measure distance to nearby stars?
8.
Draw a sketch or explain how this method works.
9.
Is there a limitation to this method? If so, explain.
10. If you are looking at parallax observations of 2 different stars, explain how you know which
star is closer and which star is further away.
11. What units are used to measure distances within our solar system?
12. What units are used to measure distances in the universe?
13. What is an AU?
14. What does it mean if a star has a relative Luminosity of 9?
15. What is a light-year?
16. If a star is 131 light-years away, how long would it take for light from this star to reach
Earth?
Explore: Springing Into Action/Explain: Much Ado About Waves
17. How can you measure the speed of a wave on a slinky? What measurements would you need
to calculate the speed of a wave?
18. What is a medium?
19. Do all waves need a medium? Explain.
20. Give some examples of waves that require a medium.
21. Give some examples of waves that do not require a medium.
22. Define the following characteristics of waves
a. Crest
b. Trough
c. Wavelength:
d. Frequency
e. Period
f. Amplitude
23. On the following wave diagram (displacement vs. distance), label the Wavelength with a λ
and Amplitude with an A. Also label the crest and trough.
On the horizontal axis () each square represents 1 second.
24. What is the period of the wave above?________________________(don’t forget units!)
25. What is the frequency of the wave above?_____________________(don’t forget units!)
26. How are frequency and period related?
27. Do waves transfer matter? Explain how you know.
28. What do waves transfer?
29. Draw a longitudinal wave (compression wave) and label the direction that energy is moving
and the direction that particles or the medium are moving.
30. Draw a transverse wave and label the direction that energy is moving and the direction that
particles or the medium are moving.
31. What is pitch? How is it related to frequency?
32. How can you calculate the speed of a wave if you know the wavelength and frequency?
33. You are making transverse waves on a slinky. Explain how you can change each of the
following variables:
a. Amplitude:
b. Frequency:
c. Wavelength:
d. Speed:
34. Are wavelength and frequency related?
35. Which variables (amplitude, frequency, wavelength, medium) affect the speed of a wave?
36. How are electromagnetic (EM) waves different from mechanical waves such as sound
waves?
37. Name 3 different types of waves that make up the EM Spectrum. Which one has the highest
frequency? Shortest Wavelength? Which one travels the fastest through space?
Explain: Star Light, Star Bright
38. What is Apparent Brightness?
39. What is Luminosity?
40. Why do astronomers need to know the apparent brightness and luminosity of stars.
41. What is the mathematical relationship between apparent brightness and luminosity for a star?
42. How do astronomers measure apparent brightness?
43. Explain how astronomers can use the inverse square law to determine the Luminosity of a
near-by star. Explain how astronomers would get the information they need to calculate
Luminosity.
44. What is a Cepheid Variable Star?
45. How can astronomers determine the Luminosity of Cepheid Variable Stars?
46. How can astronomers determine the distance to a far away Cepheid Variable Star? How
would they get the information they need to calculate distance?
47. Star A is 3 times the distance of Star B. Star A is 10 times more luminous than Star B. Both
stars are visible from the top of Mount Si. Which star appears brighter? Show your work.
Colorful Characteristics
48. What information can astronomers get from a star’s spectral data? (Name at least 3
characteristics)
49. How can astronomers determine the elements that are found in a star?
50. How can astronomers determine the color of a star?
51. You are looking at the intensity graph of a star and notice the peak intensity is at 625 nm.
What color is this star?
52. If you were looking that the intensity graph of a white star, where would you expect to see
the peak intensity?
53. How can astronomers determine the surface temperature of a star?
54. What range of surface temperatures would you expect to find in an Orange star? Show your
work.
55. Sketch the visible part of the EM spectrum. Label the wavelengths and the colors.
56. On your sketch of the visible part of the EM spectrum above, label the color that has the
highest frequency, lowest frequency, longest wavelength, shortest wavelength, highest
energy, and lowest energy