Astro 7n Exam UPDATED ACTUAL Exam
Questions and CORRECT Answers
Two 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
Questions and CORRECT Answers
Two 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
