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WorksheetsUnit 2: Sun, Moon & Earth
Total questions: 40
Worksheet time: 20mins
Aristotle concluded that Earth was round because ____.
it always casts a curved shadow during a
lunar eclipse
he sailed around the world
he calculated Earth’s circumference
it exhibited retrograde motion
The geocentric model of the universe stated that ____.
Earth revolved around the celestial sphere
the sun was the center of the universe
Earth was a “wanderer”
Earth was the center of the universe
One astronomical unit (AU) averages about ____.
39 million kilometers
93 million kilometers
150 million kilometers
210 million kilometers
The first early astronomer to propose a sun-centered solar system was ____.
Galileo
Newton
Copernicus
Brahe
What is the shape of a planet’s orbit?
elliptical
circular
irregular
parabolic
Which scientist determined the nature of the forces that keep the planets in their orbits?
Copernicus
Galileo
Brahe
Newton
Which scientist was the first to use the telescope in astronomy?
Newton
Galileo
Copernicus
Kepler
The true shape of planetary orbits was discovered by ____.
Newton
Galileo
Brahe
Kepler
Which astronomer spent 20 years plotting the positions of the planets?
Newton
Galileo
Brahe
Kepler
Patterns or configurations of stars named in honor of mythological characters are called _____.
formations
retrograde
inertias
constellations
How are constellations used in modern astronomy?
A constellation represents a faraway solar system.
They are used to group stars of the same exact brightness together.
They are used as a record of human history.
They are used to divide the sky into regions.
How many constellations are currently recognized?
850
88
The number of constellations that are recognized increases every year.
The number of constellations that are recognized decreases every year.
Earth is closest to the sun at a point called ____.
perihelion
aphelion
apogee
precession
The turning or spinning of a body on its axis is known as ____.
rotation
revolution
precession
apogee
Seasons are caused by ____.
Earth’s rotation
precession
Earth’s tilted axis
Earth’s distance from the sun
The moon is closest to Earth at ____.
perigee
apogee
perihelion
aphelion
Our timekeeping system is based on the ____.
sidereal day
solar day
phases of the moon
Earth's tilt
During the period that the moon’s phases are changing from new to full, the moon is ____.
waning
approaching Earth
waxing
exhibiting retrograde motion
According to the attached picture, the Moon is in the __________ phase at position 5.
New Moon
Full Moon
1st Quarter
Waxing Crescent
According to the attached picture, the Moon is in the __________ phase at position 7.
New Moon
Third Quarter
1st Quarter
Waxing Crescent
According to the attached picture, the Moon is in the __________ phase at position 1.
New Moon
Third Quarter
1st Quarter
Waxing Crescent
According to the attached picture, the Moon is in the __________ phase at position 2.
New Moon
Third Quarter
1st Quarter
Waxing Crescent
According to the attached picture, the Moon is in the __________ phase at position 3.
New Moon
Third Quarter
1st Quarter
Waxing Crescent
According to the attached picture, the Moon is in the __________ phase at position 4.
Gibbous Waxing
Gibbous Waning
Crescent Waning
Full Moon
According to the attached picture, the Moon is in the __________ phase at position 6.
Gibbous Waxing
Gibbous Waning
Crescent Waning
Full Moon
At the time indicated in this diagram, what season is it in the Southern hemisphere?
spring
summer
fall
winter
In the northern hemisphere, what day is represented by this diagram?
winter solstice
summer solstice
autumnal equinox
vernal equinox
People who see a partial solar eclipse are located in the ____ portion of the Moon's shadow.
umbra
perigee
apogee
penumbra
A lunar eclipse occurs when the Moon passes through Earth's ____.
atmosphere
orbit
shadow
umbra
What type of eclipse is shown in the picture?
solar eclipse
lunar eclipse
total eclipse
partial eclipse
According to the picture, at which point would an observer see a total eclipse?
Point A
Point B
Point C
None are correct
What is labeled at Point B in the picture?
Umbra
Penumbra
Path of eclipse
Sun
What is labeled at Point C in the picture?
Umbra
Penumbra
Path of eclipse
Sun
Which of the following are you most likely to experience?
total solar eclipse
total lunar eclipse
partial lunar eclipse
full moon
Round depressions on the moon’s surface are called ____.
highlands
maria
craters
meteorites
The oldest features on the moon are ____.
highlands
maria
craters
regolith
How did the lunar Maria most likely originate?
Huge impact basisn were nearly filled with basaltic lava flows.
Huge impact craters filled with frozen carbon dioxide and dark-colored salt and dust.
Massive, basaltic comets melted when they hit the lunar surface.
The solar winderoded very wide, shallow basins that filled with lunar dust.
Lunar dust is called _____.
ejecta
regolith
soot
granular remains
The most popular theory for the origin of the Moon today is _____.
The Moon and Earth coalesced from an eddy in the solar nebulae, forming a binary planet system.
The Moon formed when Mars and a comparable size planet collided, and then the Moon was ejected toward Earth and captured.
The early Earth and a planet the size of Mars collided, and the ejected material coalesced to form Earth’s Moon.
Earth captured a small planet, which is our Moon.
Most of the Moon’s craters were produced by _____.
faulting
radial implosions
volcanic eruptions
the impact of meteoroids
