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WorksheetsAstronomy Part 2
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
The occasional westward (left to right) motion of planets across the celestial sphere is called:
a)
retrograde rotation
b)
retrograde revolution
c)
retrograde motion
d)
reverse motion
2.
The shape of a Mars’s orbit around the Sun is best described as a(n):
a)
ellipse
b)
circle
c)
hyperbola
d)
parabola
3.
The configuration with Venus at the largest angle from the Sun is called?
a)
superior conjunction
b)
inferior conjunction
c)
greatest elongation
d)
opposition
4.
The Sun is at one focus of the Earth’s elliptical orbit. What is at the other focus?
a)
our moon
b)
Jupiter
c)
Venus
d)
nothing
5.
An orbit with which of the following eccentricities is most circular?
a)
0.10
b)
0.25
c)
0.72
d)
0.90
6.
In what phase is Venus closest to the Earth?
a)
new
b)
quarter phase
c)
full
d)
gibbous phase
7.
In what phase of Venus can we sometimes see that planet eclipsed by the Sun?
a)
new
b)
crescent phase
c)
quarter phase
d)
full
8.
When a planet is directly between the Earth and the Sun it is said to be in what configuration?
a)
Inferior conjunction
b)
Superior conjunction
c)
Elongation
d)
Opposition
9.
True or False: Parallax describes the variation in angle that occurs when viewing nearby objects from different places.
a)
True
b)
False
10.
A planet closer to the Sun will have…
a)
…a longer year than a planet further from the Sun.
b)
…a shorter year than a planet further from the
Sun.
c)
…the same length year as a planet further from the Sun.
11.
What two things about Venus couldn’t be explained by a geocentric cosmology?
a)
That it changes apparent size and orbital speed.
b)
That it has phases and changes apparent size.
c)
That it has phases and moons.
d)
That it changes apparent size and has moons.
12.
How would the mass of a brick change if it were placed on the Moon?
a)
Its mass would be less than it is here on Earth.
b)
Its mass would be more than it is here on Earth.
c)
Its mass would be the same as it is here on Earth.
d)
Its mass would be zero because there is no gravity on the Moon.
13.
Of the following planets, which takes longest to go around the Sun?
a)
Earth
b)
Mars
c)
Uranus
d)
Jupiter
14.
The space shuttle burns fuel as it departs from Earth. In doing so it decreases its mass. How does the gravitational force on the space shuttle change as it enters orbit?
a)
The gravitational force from the Earth decreases
because the shuttle is getting further away from the Earth and reducing its
mass.
b)
The gravitational force from the Earth increases
because the shuttle is getting further away from the Earth and reducing its
mass.
c)
The gravitational force from the Earth goes to zero
because the shuttle is weightless in orbit.
d)
The gravitational force from the Earth remains the same
because the effects of the decreasing mass and increasing distance will cancel
each other out.
15.
A light-year is a measure of:
a)
time
b)
speed
c)
mass
d)
distance
16.
Epicycles are used in a geocentric model to explain the
a)
eastward motion of Mars
b)
westward motion of Mars
c)
phases of Venus
d)
appearance of Venus in the early morning or late evening sky
17.
If the distance between the Earth and the Sun is suddenly doubled, how does the gravitational attraction between the two bodies change?
a)
It increases by a factor of 2
b)
In increases by a factor of 4
c)
It decreases by a factor of 2
d)
It decreases by a factor of 4
18.
True or False: All planets undergo retrograde motion as seen from Earth.
a)
True
b)
False
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