Astro 7N ACTUAL Exam Questions and
CORRECT Answers
Say that there were a planet X in our Solar System with a mass 1/4 the mass of Earth and a
radius 1/2 the radius of Earth. How will the gravity on its surface compare to the surface gravity
of Earth? - CORRECT ANSWER - Surface gravity on planet X is the same as on Earth
What is the relationship between wavelength and frequency? - CORRECT ANSWER - If
the frequency increases the wavelength decreases
Which would have the longest day and the shortest year? - CORRECT ANSWER -A
planet that rotated slowly on its axis and orbited the Sun rapidly
The North Star is a star in the constellation of Ursa Minor, which lies just above the North pole
of Earth. Which of the following is true? - CORRECT ANSWER - Ursa Minor is not a
Zodiac constellation
When does the New moon rise? - CORRECT ANSWER - Sunrise
If a telescope in space is only 1/4 the diameter of a telescope on Earth, which of the following is
true? - CORRECT ANSWER - The larger telescope can observe objects fainter than the
space telescope
A new planet orbits its star faster than the Earth orbits the Sun and it rotates more slowly than the
Earth rotates. Which of the following is true? - CORRECT ANSWER - The new planet
has a shorter year than Earth and a longer day than Earth
Compared to ultraviolet radiation, X-rays have a wavelength that is ... - CORRECT
ANSWER - Shorter
, From Earth, in which constellation might you find the planet Saturn? - CORRECT
ANSWER - Taurus
What are the best clouds for sunset pictures and why? - CORRECT ANSWER - High/mid-
level clouds, These draw out the colors of the sunset best
In this diagram, the moon is orbiting counter clockwise and the Earth is spinning counter
clockwise. At what time will this moon phase rise? - CORRECT ANSWER - Midnight
In the above picture, Spectrum A does not match Spectrum B. which of the following is true? -
CORRECT ANSWER - Spectrum A uses the wrong temperature
At approximately what time does the third quarter Moon rise? - CORRECT ANSWER -
midnight
A___telescope uses___to focus light - CORRECT ANSWER - - refracting: lenses
- reflecting: mirrors
Which of the following types of light has the highest frequency? - CORRECT ANSWER -
Gamma rays
Object A has a temperature of 5000K while object B's temperature is 500K. Which object has its
blackbody spectrum peak at a shorter wavelength? - CORRECT ANSWER - Object A
Which phase is the moon in the diagram above? - CORRECT ANSWER - Waning
crescent
What color does a sunset cause scenery to take on before the sun sets, and right after the sun
sets? - CORRECT ANSWER - Golden before and blue after
CORRECT Answers
Say that there were a planet X in our Solar System with a mass 1/4 the mass of Earth and a
radius 1/2 the radius of Earth. How will the gravity on its surface compare to the surface gravity
of Earth? - CORRECT ANSWER - Surface gravity on planet X is the same as on Earth
What is the relationship between wavelength and frequency? - CORRECT ANSWER - If
the frequency increases the wavelength decreases
Which would have the longest day and the shortest year? - CORRECT ANSWER -A
planet that rotated slowly on its axis and orbited the Sun rapidly
The North Star is a star in the constellation of Ursa Minor, which lies just above the North pole
of Earth. Which of the following is true? - CORRECT ANSWER - Ursa Minor is not a
Zodiac constellation
When does the New moon rise? - CORRECT ANSWER - Sunrise
If a telescope in space is only 1/4 the diameter of a telescope on Earth, which of the following is
true? - CORRECT ANSWER - The larger telescope can observe objects fainter than the
space telescope
A new planet orbits its star faster than the Earth orbits the Sun and it rotates more slowly than the
Earth rotates. Which of the following is true? - CORRECT ANSWER - The new planet
has a shorter year than Earth and a longer day than Earth
Compared to ultraviolet radiation, X-rays have a wavelength that is ... - CORRECT
ANSWER - Shorter
, From Earth, in which constellation might you find the planet Saturn? - CORRECT
ANSWER - Taurus
What are the best clouds for sunset pictures and why? - CORRECT ANSWER - High/mid-
level clouds, These draw out the colors of the sunset best
In this diagram, the moon is orbiting counter clockwise and the Earth is spinning counter
clockwise. At what time will this moon phase rise? - CORRECT ANSWER - Midnight
In the above picture, Spectrum A does not match Spectrum B. which of the following is true? -
CORRECT ANSWER - Spectrum A uses the wrong temperature
At approximately what time does the third quarter Moon rise? - CORRECT ANSWER -
midnight
A___telescope uses___to focus light - CORRECT ANSWER - - refracting: lenses
- reflecting: mirrors
Which of the following types of light has the highest frequency? - CORRECT ANSWER -
Gamma rays
Object A has a temperature of 5000K while object B's temperature is 500K. Which object has its
blackbody spectrum peak at a shorter wavelength? - CORRECT ANSWER - Object A
Which phase is the moon in the diagram above? - CORRECT ANSWER - Waning
crescent
What color does a sunset cause scenery to take on before the sun sets, and right after the sun
sets? - CORRECT ANSWER - Golden before and blue after
