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1.
The diagram represents a model of the orbit of a moon around a planet. Points A, B, C, and D
indicate four positions of the moon in its orbit. Points F1 and F2 are focal points of the orbit.
When viewed from the planet, the moon has the greatest apparent diameter at point
1.
2.
3.
4.
A
B
C
D
2.
The diagram represents a model of the orbit of a moon around a planet. Points A, B, C, and D
indicate four positions of the moon in its orbit. Points F1 and F2 are focal points of the orbit.
As the moon moves in its orbit from point D to point B, the force of gravitational attraction
between the moon and the planet
1.
2.
3.
4.
increases only
decreases only
increases, then decreases
decreases, then increases
3.
The diagram represents eight positions of the Moon as it revolves around the Earth.
When viewed from the Earth, which phase of the Moon will be seen when the Moon is at point
E?
1.
2.
3.
4.
first quarter
full moon
new moon
last quarter
4.
The diagram shows Earth’s position in its orbit around the Sun at the beginning of each season.
Earth’s orbit around the Sun is best described as
1.
2.
3.
4.
a perfect circle
an oblate spheroid
a very eccentric ellipse
a slightly eccentric ellipse
5.
The diagram shows the relative positions of the Sun, Earth, and Moon in space. Letters A, B, C,
and D represent locations on the Earth’s surface.
At which location would an observer on the Earth have the best chance of seeing a total solar
eclipse?
1.
2.
3.
4.
A
B
C
D
6.
PlanetA has a greater mean distance from the Sun than planet B. On the basis of this fact, which
further comparison can be correctly made between the two planets?
1.
2.
3.
4.
Planet A is larger.
Planet A’s revolution period is longer.
Planet A’s speed of rotation is greater.
Planet A’s day is longer.
7.
The surface of Venus is much hotter than would be expected, considering its distance from the
Sun. Which statement best explains this condition?
1.
2.
3.
4.
Venus has many active volcanoes.
Venus has a slow rate of rotation.
The clouds of Venus are highly reflective.
The atmosphere of Venus contains a high percentage of carbon dioxide.
8.
The diagram represents part of the night sky, including the constellation Leo. The black circles
represent stars. The open circles represent the changing positions of one celestial object over a
period of a few weeks. The celestial object most likely represented by the open circles is
1.
2.
3.
4.
a galaxy
a planet
Earth's Moon
another star
9.
Which planet has vast amounts of liquid water at its surface?
1.
2.
3.
4.
Venus
Mars
Jupiter
Earth
10.
The diagram represents a standard dark-line spectrum for an element. The spectral lines of this
element are observed in light from a distant galaxy. Which diagram represents these spectral
lines?
1.
2.
3.
4.
11.
Stars spend most of their life as
1.
2.
3.
4.
Blue supergiants
Main sequence stars
White dwarfs
Red giants
12.
Which two groups of stars can have similar brightness?
1. Blue supergiants and white dwarfs
2. White dwarfs and red giants
3. Red dwarfs and red giants
4. Blue supergiants and supergiants
13.
Which of the forces listed below is most responsible for the formation of stars?
1.
2.
3.
4.
Gravity
Magnetism
Electromagnetism
Light
14.
The Milky Way galaxy is best described as
1.
2.
3.
4.
a type of solar system
a constellation visible to everyone on Earth
a region in space between the orbits of Mars and Jupiter
a spiral-shaped formation composed of billions of stars
15.
Base your answer to the question on the diagram below, which represents the elliptical orbit of a
planet traveling around a star. Points A, B, C, and D are four positions of this planet in its orbit.
The calculated eccentricity of this orbit is approximately
1.
2.
3.
4.
0.1
0.2
0.3
0.4
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False
0
0
1