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Astro 7n Exam
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Exam of 5 pages for the course ASTRO 7N 1 at ASTRO 7N 1 (Astro 7n Exam)
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Astro 7n ExamTwo planets have the same radius. If Planet A is 5 times more massive than Planet B, how
does gravity differ on the surfaces of the two planets?
A) gravity is 5 times stronger on Planet B
B) gravity is 5 times stronger on Planet A
C) gravity is 25 times stronger on Planet A
D) gravity is 25 times stronger on Planet B
E) gravity is equal on Planet A and Planet B - correct answer-gravity is 5 times stronger on
Planet A
If the frequency of radiation is twice as large than its wavelength is...
A) one quarter as large
B) twice as large
C) one hundred times as long
D) four times as large
E) half as large - correct answer-half as large
Which would have the shortest day and the longest year?
A) A planet that rotates slowly on its axis and orbits slowly around the Sun.
B) A planet that rotates rapidly on its axis and orbits slowly around the Sun.
C) A planet that rotates slowly on its axis and orbits rapidly around the Sun.
D) A planet that rotates slowly on its axis and orbits slowly around the Sun.
E) A planet that rotates rapidly on its axis and orbits rapidly around the Sun. - correct
answer-B) A planet that rotates rapidly on its axis and orbits slowly around the Sun.
Stars that are in the same constellation... - correct answer-are likely to be at very different
distances from us.
When does the New Moon rise?
midnight
noon
sunrise
never
sunset - correct answer-sunrise
How long would one need to observe a star on a 10 meter telescope to collect the same
amount of light as one collects in one hour on a 5 meter telescope?
15 minutes
30 minutes
4 minutes
2.5 hours
, 1 hour - correct answer-15 minutes
What time of year is it dark all day (and night) at the South pole?
December
March
September
never
June - correct answer-June
Compared to UV radiation, X-rays have a wavelength that is...
longer
the same
zero
shorter
sootiness shorter and sometimes longer - correct answer-shorter
From Earth, in which constellation might you find the planet Saturn?
Canis Major
Taurus
Ursa Minor
Lyra
Draco - correct answer-Lyra
What characteristics make "Golden Hour" Unique?
Dim lighting, but flash is not necessary
There is bright lighting that washes out texture
Weak shadows and strong contrast
Bright blue and violet hues
The low angle of the sun creates strong shadows and unique features - correct answer-The
low angle of the sun creates strong shadows and unique features
In this diagram, the moon is orbiting counter clockwise and the Earth is spinning counter
clockwise. At what time will this moon phase set?
Sunrise
Noon
Midnight
3pm
Sunset - correct answer-Midnight
In the above picture, Spectrum A does not match with Spectrum B. Which of the following is
true. - correct answer-Spectrum B is a blackbody spectrum, but Spectrum A is not
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