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WorksheetsEarth Space Chapter 28 Review
Total questions: 40
Worksheet time: 40mins
According to the Big Bang theory, which statement is accurate about how the universe came to be? *
It expanded slowly.
It gradually warmed.
Stars and galaxies formed.
Atoms such as hydrogen were destroyed.
Which is one piece of information that astronomers use to calculate the age of the universe?
dark energy
the age of rocks on Earth
the current motion of inner planets
patterns of cosmic background radiation
Which statement describes a light-year?
It is the shape of a galaxy?
It is the distance that light travels in a year.
It is a yearly measurement of light given off by stars.
It is the amount of time it takes light to travel one million kilometers.
What type of galaxy is shown?
barred
elliptical
irregular
spiral
lenticular
What type of galaxy is shown?
barred
elliptical
irregular
spiral
lenticular
What type of galaxy is shown?
barred
elliptical
irregular
spiral
lenticular
What type of galaxy is shown?
barred
elliptical
irregular
spiral
lenticular
What type of galaxy is shown?
barred
elliptical
irregular
spiral
lenticular
What evidence supports the Big Bang theory?
Planets form in debris disks.
Most galaxies are moving toward us.
Cosmic background radiation is detected in every direction.
Galaxies spin faster than they should based on visible matter.
What was the purpose of the Apollo program?
to put a man in orbit
to launch a spy satellite
to launch a space station
to put man on the moon
Which technology has allowed for exploration beyond our solar system?
space probe
space station
space shuttle
space observatory
Which statement explains the role of rovers in space exploration?
run tests on soil samples
orbit Earth, observing distant galaxies
carry astronauts and equipment into space
launch from Earth, carrying astronauts that perform research
Which type of telescope uses mirrors to gather light?
reflecting
refracting
radio
infrared
What is a group of stars, dust, gas, and other objects held together by gravitational forces?
galaxy
black hole
planetary system
universe
What includes all matter and energy that exists?
galaxy
black hole
planetary system
universe
What do astronomers believe exists in the very center of our galaxy?
cosmic background radiation
black hole
planetary system
standard candle
What is an object such as a star whose luminosity is known called?
black hole
standard candle
doppler shift
lenticular
What is a star with orbiting planets called?
universe
galaxy
black hole
planetary system
Very large or very small numbers are sometimes expressed in what kind of notation?
inverse square
standard
scientific
doppler
As observed from Earth, the light from a distant star is shifted toward the red end of the visible spectrum. What would this indicate to an astronomer?
The star is getting brighter.
The star is getting dimmer.
The star is moving toward Earth.
The star is moving away from Earth.
What is the change in wavelength of a wave that occurs when an object is moving toward or away from an observer?
standard candle
refraction
inverse square
doppler shift
What shape is the Milky Way galaxy?
spiral
barred spiral
lenticular
elliptical
What is the escape velocity of a black hole?
the force of gravity
the speed of light
the inverse square law
the speed of sound
According to the Big Bang theory, how old is the universe?
5 to 10 billion years
10 to 20 billion years
20 to 30 billion years
30 to 40 billion years
What is a parsec?
a distance equal to about 3.26 light years
a distance equal to 326 light years
the length of time it takes for light to reach the moon
the length of time it takes for light to reach the Earth
Which object is the farthest away from Earth?
Andromeda galaxy
our Sun
the Moon
the star Sirus
Which object is the closest to Earth?
Andromeda galaxy
our Sun
the Moon
the star Sirius
About how many stars are in our home galaxy?
200
200,000
200,000,000
200 billion
What is the approximate distance between galaxies?
100 kilometers
100 light years
1 million light years
1 billion light years
What type of telescope uses lenses to gather visible light?
reflecting telescope
radio telescope
refracting telescope
x-ray telescope
How does a parsec compare to a light year?
A parsec is a larger unit of distance.
A parsec is a smaller unit of distance.
A parsec is a smaller unit of time.
A parsec is a larger unit of time.
What is the number 12,000,000 written using scientific notation?
1.2 x 107
12 x 106
1.2 x 10-7
12 x 10-6
What is the name of the galaxy to which the Sun and our solar system belong?
Andromeda
Milky Way
Lenticular
Cartwheel
When you look up at the night sky from Earth, what does the Milky Way look most like?
a band of light stretching across the sky
a giant pinwheel slowly rotating clockwise
a big dipper
a greenish curtain of light
Where is the Sun located in the Milky Way?
at the center of the galaxy
close to the center of the galaxy
about half-way from the center to the edge
at the edge of the galaxy
The stars of the Milky Way are arranged in a disk shape. What is the distance across the disk?
100,000 miles
100,000 light years
100,000,000 miles
100,000,000 light years
According to the most recent theory of the origin of the universe, all of the matter and energy of the universe was compressed into what size space?
the size of Earth
the size of the Moon
the size of a basketball
smaller than the nucleus of an atom
According to the most widely accepted scientific theory, the formation of the universe began about how many years ago?
1 to 2 million years ago
10 to 20 years ago
1 to 2 billion years ago
10 to 20 billion years ago
What is the most abundant element in the universe?
hydrogen
helium
oxygen
carbon
Which type of telescope works ONLY if placed on a satellite above Earth's atmosphere?
infrared
radio
x-ray
refracting
