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Astronomy 102 Voting Card Questions

Terms in this set (36)

If every star in the universe was a grain of sand, which of the following would be filled 4 meters deep in sand?
A. This classroom
B. Cal Poly Campus
C. SLO County
D. California
E. Continental US
D. California
Why can't we see a galaxy 15 billion light-years away?
A. Because no galaxies exist at such a great distance
B. Galaxies may exist at that distance, but their light would be too faint for our telescopes to see
C. Because the light has not had the time to reach us yet.
C. Because the light has not had the time to reach us yet
How much of the celestial sphere can an Earth observer see at one time?
A. Less than half
B. More than half
C. Exactly half
D. Depends on the location
C. Exactly half
Where is Polaris if you live at the North Pole?
A. On the horizon
B. Directly overhead
C. 35 degrees above N horizon
D. 55 degrees above N horizon
E. 35 degrees above S horizon
B. Directly overhead
Where is Polaris if you live at the Equator?
A. On the Horizon
B. Directly Overhead
C. 35 Degrees above N Horizon
D. 55 Degrees above N Horizon
E. 35 Degrees above S Horizon
A. On the Horizon
Where is Polaris if you live in SLO?

A. On the Horizon
B. Directly Overhead
C. 35 Degrees above N Horizon
D. 55 Degrees above N Horizon
E. 35 Degrees above S Horizon
D. 55 degrees above N Horizon
You go out tonight and see the brightest star in the constellation Orion just rising about your eastern horizon at 10 pm. One week later at 10 pm this same star will be ...
A. Slightly higher in the sky
B. At the same height as before
C. Below your horizon
D. Setting on your western horizon
A. Slightly higher in the sky
One night, you see the star Sirius rise at exactly 7:36 PM. The following night it will rise
A. Slightly earlier
B. At the same time
C. Slightly later
A. Slightly earlier
What component of Earth's motion causes the stars to rise earlier on successive nights?
A. It's rotation about its axis
B. It's orbit around the Sun
C. The tilt of its rotation axis
B. It's orbit around the Sun
Through how many degrees does Earth rotate in exactly 24 hours?
A. Less than 360
B. Exactly 360
C. More than 360
C. More than 360
Imagine that the Earth begins orbiting the Sun twice as fast while maintaining the same rotation rate. It now orbits once around the Sun every 6 months. In this case, what happens to the length of the solar day?
A. It gets slightly longer
B. It does not change
C. It gets slightly shorter
D. It is cut in half
E. It doubles
A. It gets slightly longer
Imagine that Earth stops orbiting the Sun but continues to rotate in place about its own axis at its current rate. In this case, what happens to the length of the solar day?
A. It gets slightly longer
B. It does not change
C. It gets slightly shorter
D. It is cut in half
E. It doubles
C. it gets slightly shorter
Which of the following statements is true about the location of the Sun at sunrise during the middle of winter?
A. The sun will rise north of east
B. The sun will rise directly in the east
C. The sun will rise south of east
D. None of the above
C. South of east
Which of the following statements is true about the location of the Sun at sunset during the middle of summer?
A. The sun will set north of west
B. The sun will set directly in the west
C. The sun will set south of west
D. None of the above
A. The sun will set north of west
If it is summertime right now, how does the altitude of the noontime sun change (if at all) as winter approaches?
A. It increases
B. It decreases
C. It stays the same
B. It decreases
True or False:
Temperatures are generally higher during the summer months because the earth is closer to the Sun during summer
False
True or False:
Temperatures are generally higher during the summer months because out hemisphere is closer to the Sun during summer
False
True or False:
Temperatures are generally higher during the summer months because the Sun gives off more energy during the summer
False
True or False:
Temperatures are generally higher during the summer months because the Sun passes higher in the sky during summer
True
True or False:
Temperatures are generally higher during the summer months because the sun is above the horizon longer in the summer
True
Complete this statement: In the norther hemisphere, when the Sun is _____________ in the sky at noon, it is summer.
A. Highest
B. Lowest
C. For a given location on earth, the sun is always at the same height in the sky at noon
A. Highest
Complete this statement: In the northern hemisphere, the Sun is up in the sky ____________ during the winter
A. More hours
B. Less hours
C. For a given location on earth, the sun is always up in the sky the same amount of hours
B. Less hours
Imagine that Earth's orbit were changed to be a perfect circle around the sun so that the distance to the Sun never changed. How would this affect the seasons?
A. We would no longer experience a difference between the seasons
B. We would continue to experience seasons in essentially the same way we do now
C. We would still experience seasons, but the difference would be much more noticeable
D. We would still experience seasons, but the difference would be much less noticeable
B. We would continue to experience seasons in essential the same way we do now
You take an image of a star with a 4m radius telescope and expose for 10 seconds. In order to get the same bright image of the star with a 1m radius telescope, how many seconds will you have to expose for?
A. 10 seconds
B. 20 seconds
C. 40 seconds
D. 80 seconds
E. 160 seconds
E. 160 seconds
Which of the following wavelengths can be easily observed front he Earth surface?
A. X-Ray
B. Ultraviolet
C. Radio
D. All of the above
E. None of the above
C. Radio
Which is the correct reasoning for why a gamma ray telescope located in Antarctica that is to be used to look for evidence of black holes in the centers of galaxies would not get funded?
A. There is no way to detect the presence of a black hole
B. Gamma rays are too energetic to detect with a telescope
C. You cannot build a functioning telescope in Antarctica
D. Gamma rays do not penetrate Earth's atmosphere
D. Gamma rays do not penetrate Earth's atmosphere
Imagine you are the head of a funding agency that can afford to build only one telescope. Which of the four proposed telescopes below would be best to support?
A. A gamma ray telescope in Antarctica
B. A radio telescope in orbit above the Earth
C. A visible telescope located high on a mountain in Peru
D. An ultraviolet telescope located in the Mojave desert
C. A visible telescope located high on a mountain in Peru
Which of the following is not a form of light?
A. Radio waves
B. Microwaves
C. X-rays
D. All of the above are a form of light
E. None of the above are a form of light
D. All of the above are a form of light
Which of the following travels the slowest?
A. Radio waves
B. Visible light
C. X-rays
D. Infrared light
E. They all travel at the same speed
E. They all travel at the same speed.
Which of the following has the shortest wavelength?
A. A photon of ultraviolet light
B. Blue electromagnetic radiation
C. An x-ray
D. A radio wave
E. Infrared radiation
C. An x-ray
Which of the following is true about comparing gamma rays and radio waves?
A. The radio waves have a lower energy and travel slower than gamma rays
B. The gamma rays have a shorter wavelength and a lower energy than radio waves
C. The radio waves have a longer wavelength and travel at the same speed as gamma rays
D. The gamma rays have a higher energy and travel faster than radio waves
C. The radio waves have a longer wavelength and
travel at the same speed as gamma rays.
Which of the following has the least energy?
A. Radio Waves
B. Visible light
C. X-rays
D. Infrared light
E. They all have the same energy
A. Radio Waves
Which of the following spectra is produced by the sun?
A. Dark line absorption spectrum
B. Bright line emission spectrum
C. Continuous Spectrum
A. Dark line absorption spectrum
If you analyze the light from a hot low-density object, which type of spectrum do you see?
A. Dark line absorption spectrum
B. Bright line absorption spectrum
C. Continuous spectrum
B. Bright line absorption spectrum
Imagine that you are on the surface of the earth and are observing the Sun. Which of the following spectra would you observe by analyzing the sunlight?
A. Dark line absorption spectrum
B. Bright line absorption spectrum
C. Continuous spectrum
A. Dark line absorption spectrum
Imagine that you observe the Sun while in a space shuttle in an orbit high above Earth's atmosphere. Which of the following spectra would you observe by analyzing the sunlight?
A. Dark line absorption spectrum
B. Bright line absorption spectrum
C. Continuous spectrum
A. Dark line Absorption spectrum
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