Download Stars and Universe Test Review - Garnet Valley School District

Name ____________________________________________ Period _________ Date ________
Earth and Space Science
Astronomy
Stars and Universe Test Review
Part A: Vocabulary
What terms match the following definitions?
1. __________________________ large, glowing spheres of gas that generate light through
nuclear fusion in their cores
2. __________________________ hot, very dense, Earth-sized stars
3. __________________________ matter that does not give off electromagnetic radiation
4. __________________________ a telescope that uses lenses or mirrors to collect and focus
visible light
5. __________________________ the apparent shift in the wavelengths of energy emitted
from a source moving away from or toward an object
6. __________________________ a group of billions of stars, dust, and gas held together by
gravity
7. __________________________ an instrument that separates light into bands of color
8. __________________________ a temperature classification of different types of stars
9. __________________________ our galaxy
10. _________________________ it includes gamma rays, X-rays, ultraviolet light, visible light,
infrared radiation, microwaves, and radio waves
11. _________________________ the apparent brightness of any star if it were viewed from a
distance of 32.6 light-years away from Earth
12. _________________________ a huge explosion of a star
13. _________________________ a series of bright colored lines of particular wavelengths
14. _________________________ a large, cool star of high luminosity
15. _________________________ the farther away a galaxy is, the faster it is moving away
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16. _________________________ uses a curved mirror to reflect light to produce an image
17. _________________________ spectral lines shifted towards the blue end of visible
spectrum. Object is moving towards you.
18. _________________________ round to oval; mostly small galaxies
19. _________________________ the brightness of a star as seen from Earth
20. _________________________ a developing star not yet hot enough to engage in nuclear
fusion
21. _________________________ uses a curved surface to reflect radio waves from space
22. _________________________ a graph that plots a star’s temperature (x axis) verses its
brightness (y-axis)
23. _________________________ irregular shaped galaxies
24. _________________________ the distance from one wave crest to another
25. _________________________ the apparent change in position of an object when you look
at it from different places
26. _________________________ made of neutrons formed as protons and electrons are
squeezed together. It is very dense
27. _________________________ a continuous band of colors with several to many dark lines
within it
28. _________________________ a very large, very bright red giant star
29. _________________________ energy from the explosion of the big bang
30. _________________________ instruments that collect and focus light and other forms of
electromagnetic radiation
31. _________________________ the distance light travels in one year
32. _________________________ the remnant of very massive star that has a gravitational
force so strong even light cannot escape
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33. _________________________ rainbow of colors (ROY G BIV)
34. _________________________ 90% of all stars
35. _________________________ entire universe was confined to a tiny, dense, hot, super
massive object then exploded outward hurling this
material in all directions
36. _________________________ uses curved lenses to bend (refract) light to produce an
image
37. _________________________ spectral lines shifted towards the red end of visible
spectrum. Object is moving away from you.
38. _________________________ disk-shaped; large galaxies
39. _________________________ an atomic reaction in which smaller atoms are converted to
larger atoms
40. _________________________ a cloud of gas and dust in space
41. _________________________ a force that is causing the expansion of the universe to
accelerate
Part B: Science Skills
________ 42. Which of the following magnitudes will be the brightest object in the sky?
A. +1
B. +3
C. +7
D. +11
________ 43. Which spectral classification would be highest in temperature?
A. G5
B. K6
C. K2
D. G0
________ 44. What magnitude are the faintest stars that the unaided eye can detect?
A. sixth
B. first
C. second
D. fourth
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________ 45. Stars A, B, C, D are all the same temperature. Which star would be the second
brightest?
A.
B.
C.
D.
________ 46. Which spectral classification would be coolest in temperature?
A. B7
B. F8
C. F4
D. B2
________ 47. Which of the following magnitudes will be the dimmest objects in the sky?
A. -3
B. -2
C. -1
D. 0
________ 48. The diagram below represents four visible light waves with different
characteristics. What is the correct sequence of colors?
A.
B.
C.
D.
Red (A), Blue (B), Yellow (C), Green (D)
Green (A), Yellow (B), Blue (C), Red (D)
Yellow (A), Green (B), Red (C), Blue (D)
Blue (A), Red (B), Green (C), Yellow (D)
________ 49. Which distance do astronomers use when evaluating absolute magnitude?
A. 32.6 light years
B. 1 AU
C. 10 light years
D. 1 light year
________ 50. Which of the following is true about parallax?
A. It is used to measure distances to stars.
B. The parallax angles of distant stars are too small to measure.
C. The nearest stars have the smallest parallax angles.
D. both A and B
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Use the H-R diagram below to answer questions 51 through 54.
________ 51. A star with a temperature of 10,000 degrees Celsius and a luminosity of 100 would
be considered a:
A. white dwarf
B. red giant
C. main sequence
D. super giant
________ 52. Red dwarfs are considered ______.
A. cool, dim stars
B. hot, bright stars
C. cool, bright stars
D. hot, dim stars
________ 53. Red giants are _______.
A. cool, dim stars
B. hot, bright stars
C. hot, dim stars
D. cool, bright stars
________ 54. Which star is the brightest?
A. Sirius
B. Polaris
C. Procyon B
D. Aldebaran
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________ 55. The diagram to the right shows a standard spectrum compared to a spectrum
produced from a distant star. Which conclusion can be made by comparing the
standard spectrum to the spectrum
produced from this distant star?
A. The star’s spectral lines have shifted
toward the ultraviolet end of the spectrum
and the star is moving toward Earth.
B. The star’s spectral lines have shifted
toward the ultraviolet end of the spectrum
and the star is moving away from Earth.
C. The star’s spectral lines have shifted
toward the infrared end of the spectrum
and the star is moving toward Earth.
D. The star’s spectral lines have shifted toward the infrared end of the spectrum and
the star is moving away from Earth.
________ 56. After observing a particular galaxy for 10 years, you have noticed that its spectral
lines have shifted toward the shorter wavelengths, proving:
A.
B.
C.
D.
the galaxy is moving away from Earth
the galaxy is moving toward the Earth
the galaxy is cooling
the galaxy is warming
________ 57. The difference in the brightness of two stars with the same surface temperature is
due to their ____.
A. densities
B. colors
C. ages
D. sizes
________ 58. Large Doppler shifts indicate ____.
A. low speeds
B. high speeds
C. low temperatures
D. high temperatures
________ 59. Which of the following indicates that the universe is expanding?
A. red shift of distant galaxies
B. blue shift of distant galaxies
C. blue shift of the Milky Way
D. red shift of the Milky Way
________ 60. All stars, regardless of size, eventually ____.
A. turn into black dwarfs
B. explode
C. run out of fuel and collapse
D. become black holes
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Name ____________________________________________ Period _________ Date ________
Earth and Space Science
Astronomy
Stars and Universe Test Review
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