Astro 7N Test Sample UPDATED ACTUAL
Exam Questions and CORRECT Answers
What two properties of a planet affect the gravity we feel on its surface?
A:
radius and distance from the Sun
B:
radius and temperature
C:
mass and distance from the Sun
D:
mass and radius
E:
mass and temperature - CORRECT ANSWER - D:
mass and radius
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 - B:
,gravity is 5 times stronger on planet A
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?
A:
surface gravity on planet X is 2 times weaker than on Earth
B:
surface gravity on planet X is 2 times stronger than on Earth
C:
surface gravity on planet X is the same as on Earth
D:
surface gravity on planet X is 8 times stronger than on Earth
E:
surface gravity on planet X is 4 times weaker than on Earth - CORRECT ANSWER - C:
surface gravity on planet X is the same as on earth
A planet in a nearly circular orbit with its rotation axis tilted by 5 degrees relative to
its orbital plane around its star would ...
A:
have longer days and nights than those of Earth
B:
have very severe seasons compared to Earth
C:
have shorter years than those of Earth
D:
have shorter days and nights than those of Earth
E:
, have seasons that are not very different from each other as compared to
Earth's. - CORRECT ANSWER - E:
have seasons that are not very different from each other as compared to
Earth's.
The rotation axis of the Earth is ...
A:
tilted so that it is always pointed directly at the Sun
B:
is sometimes parallel and sometimes perpendicular to the axis of the Earth's
orbit around the Sun.
C:
tilted at about 23 degrees relative to the axis of the Earth's orbit around the
Sun.
D:
perpendicular to the axis of the Earth's orbit around the Sun.
E:
parallel to the axis of the Earth's orbit around the Sun. - CORRECT ANSWER - C:
tilted at about 23 degrees relative to the axis of the Earth's orbit around the
Sun.
In the diagram above, what season and planet is being represented by the red X on
the planet on the left in orbit around the Sun?
A:
winter on Earth
B:
summer on Earth
C:
Exam Questions and CORRECT Answers
What two properties of a planet affect the gravity we feel on its surface?
A:
radius and distance from the Sun
B:
radius and temperature
C:
mass and distance from the Sun
D:
mass and radius
E:
mass and temperature - CORRECT ANSWER - D:
mass and radius
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 - B:
,gravity is 5 times stronger on planet A
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?
A:
surface gravity on planet X is 2 times weaker than on Earth
B:
surface gravity on planet X is 2 times stronger than on Earth
C:
surface gravity on planet X is the same as on Earth
D:
surface gravity on planet X is 8 times stronger than on Earth
E:
surface gravity on planet X is 4 times weaker than on Earth - CORRECT ANSWER - C:
surface gravity on planet X is the same as on earth
A planet in a nearly circular orbit with its rotation axis tilted by 5 degrees relative to
its orbital plane around its star would ...
A:
have longer days and nights than those of Earth
B:
have very severe seasons compared to Earth
C:
have shorter years than those of Earth
D:
have shorter days and nights than those of Earth
E:
, have seasons that are not very different from each other as compared to
Earth's. - CORRECT ANSWER - E:
have seasons that are not very different from each other as compared to
Earth's.
The rotation axis of the Earth is ...
A:
tilted so that it is always pointed directly at the Sun
B:
is sometimes parallel and sometimes perpendicular to the axis of the Earth's
orbit around the Sun.
C:
tilted at about 23 degrees relative to the axis of the Earth's orbit around the
Sun.
D:
perpendicular to the axis of the Earth's orbit around the Sun.
E:
parallel to the axis of the Earth's orbit around the Sun. - CORRECT ANSWER - C:
tilted at about 23 degrees relative to the axis of the Earth's orbit around the
Sun.
In the diagram above, what season and planet is being represented by the red X on
the planet on the left in orbit around the Sun?
A:
winter on Earth
B:
summer on Earth
C:
