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Worksheets7.1 & 7.2 Exam Review
Total questions: 60
Worksheet time: 30mins
The first ancient astronomer to propose a heliocentric model of the Universe
Hipparchus
Kepler
Brahe
Aristarchus
A Danish nobleman who designed and built instruments for measuring stars and planets, his observations were very precise.
Hipparchus
Kepler
Brahe
Aristarchus
He was the first to catalog almost 850 stars according to their brightness.
Hipparchus
Kepler
Brahe
Aristarchus
He discovered the 3 laws of planetary motion.
Hipparchus
Kepler
Brahe
Aristarchus
He was the first to say the Earth is round.
Aristotle
Newton
Eratosthenes
Copernicus
He was the first to calculate the circumference of the Earth.
Aristotle
Newton
Eratosthenes
Copernicus
Proposed the now widely accepted heliocentric model of the solar system.
Aristotle
Newton
Eratosthenes
Copernicus
The apparent backward movement of the planets in the sky is known as
heliocentric orbits
retrograde motion
celestial movement
The geocentric model of the universe has the _______ at its center.
sun
moon
Earth
The heliocentric model of the universe has the _______ at its center.
sun
moon
Earth
Galileo's contributions to astronomy include....
discovery of sunspots on the sun
the four moons of Jupiter
the moon's surface has craters
he discovered all of these
The part of the electromagnetic spectrum that human eyes can see is
radio waves
visible light waves
x-rays
infrared waves
White light from stars are seperated into the colors of the rainbow by a
prism
microscope
telescope
helioscope
The wavelength of red light is ________ than the wavelength of blue light.
longer
shorter
The longer the wavelength, the _____ energy the light wave has.
greater
less
Galaxies that are moving away from us in space are said to have a
red-shift
blue-shift
A refracting telescope uses a lens to bend light to see an image.
True
False
Evidence that supports the idea that light behaves like a particle, is that light can
move through solids
put pressure on matter
be absorbed by gases
turn a corner
One advantage of space telescopes is that they don't have to "see" through Earth's atmosphere.
True
False
Evidence suggests that the Universe began
4.5 Billion years ago
450 million years ago
10.8 million years ago
13.7 billion years ago
This picture is showing a(n)
continous spectrum
emission spectrum
absorption spectrum
According to Hubble's Law....
planets are retreating from us at the speed of light
galaxies show blue shift since the universe is expanding
the farther away a galaxy is from us the faster it is moving away from us
galaxies can tell us the age of the universe
Evidence that supports the Big Bang Theory includes....
the black holes at the center of galaxies
the continuous spectrum of stars
cosmic background radiation
the Doppler Effect
The first space telescope NASA launched is
Hubble
Webb
Spitzer
Compton
The most recent space telescope NASA and other space agencies launched is
Hubble
Webb
Spitzer
Compton
There are 3 types of galaxies, they are
spiral, oblong, irregular
spiral, irregular, elliptical
circular, irregular, spiral
spherical, oblong, circular
What galaxy do we live in?
Andromeda
Large Magellanic Cloud
Milky Way
Orion
Our galaxy is known as a
barred-spiral galaxy
irregular galaxy
elliptical galaxy
spherical galaxy
What is the relationship between the color of stars and their surface temps?
red stars are hotter, blue stars are cooler
yellow stars are the hottest, white stars are the coolest
red stars are hotter, yellow stars are the coolest
red stars are cooler, blue stars are hotter
What is the relationship between large massive stars and small dwarf stars?
large massive stars are brighter than small dwarf stars
dwarf stars are brighter than massive stars
there is no relationship between the size of a star and it's brighness
A light year measures
how fast the sun travels around the Milky Way
how far the Earth travels in a year
the distance light can travel in a year
how fast light can travel
Binary star systems tell us what about stars?
their mass
the size of the star
the age of the star
the type of star
Apparent magnitude is a measure of
how far a star is from us
how bright a star appears to be from the Earth
a star's brightness compared to other stars around it
a star's luminosity
With apparent magnitude,
the bigger the star, the dimmer it appears to be
the farther away the star, the brighter it appears to be
the closer the star, the brighter it appears to be
the smaller the star, the brighter it appears to be
The HR Diagram is a star's relationship between....
the distance from the Earth and the size of the star
the temperature of the star and the distance from the Earth
the size and the distance from the Earth of the star
the brightness and temperature of the star
What is a nebula?
a gas and dust cloud in space
a dying star
a star cluster in our galaxy
a new born planet
A star is born when
a gas cloud starts to glow
gravity takes hold of a nebula
fusion of hydrogen occurs in the core of the star
a black hole forms
A low mass star will go through the following steps in it's life cycle.
nebula, protostar, main sequence, white dwarf, black dwarf
nebula, protostar, main sequence, red supergiant, super nova, black hole
nebula, protostar, main sequence, red giant, planetary nebula, white dwarf
nebula, protostar, main sequence, neutron star, red supergiant, white dwarf
A medium mass star will go through the following steps in it's life cycle.
nebula, protostar, main sequence, white dwarf, black dwarf
nebula, protostar, main sequence, red supergiant, super nova, black hole
nebula, protostar, main sequence, red giant, planetary nebula, white dwarf
nebula, protostar, main sequence, neutron star, red supergiant, white dwarf
A large massive star will go through the following steps in it's life cycle.
nebula, protostar, main sequence, white dwarf, black dwarf
nebula, protostar, main sequence, red supergiant, super nova, black hole
nebula, protostar, main sequence, red giant, planetary nebula, white dwarf
nebula, protostar, main sequence, neutron star, red supergiant, white dwarf
Our sun is currently in what stage of it's life cycle?
white dwarf
protostar
main sequence
red giant
Where does fusion occur in stars?
photosphere
corona
chromosphere
core
What is the surface of the sun called?
photosphere
corona
chromosphere
core
The first layer of the sun's atmosphere is called the
photosphere
corona
chromosphere
core
The most outer layer of the sun's atmosphere is the
photosphere
corona
chromosphere
core
What is the most abundant element in our sun?
carbon
hydrogen
helium
iron
How old is our sun?
2.5 billion years old
3.5 billion years old
4.5 billion years old
5.5 billion years old
Who discovered the sunspots on the photosphere of the sun?
Aristotle
Issac Newton
Galileo
Kepler
Sunspots are
cooler spots on the surface of the sun
areas of intense solar activity
spots that produce solar prominences
all of these possibilities
What is a particle of light called?
photon
proton
neutron
electron
What can we determine about a star from its spectrum?
its magnitude
its mass
its chemical composition
nothing
What do we call the phenomenon that causes wavelengths to shrink when the source is coming toward you, or expand when it is moving away?
Hubble's Law
Doppler Effect
chromatic aberration
spectroscopy
In optical telescopes, what factor determines how clear or sharp the image is?
resolving power
magnifying power
light-gathering power
chromatic aberration
When light is bent in a refracting telescope, the colors can be separated leading to a weakened or blurry image. What is this called?
Hubble's Law
the Doppler Effect
optical transference
chromatic aberration
What explosive event on the sun originates from sunspots and releases energy and particles into space?
solar flare
solar wind
solar prominence
convection currents
What process produces the energy in stars?
nuclear fission
nuclear fusion
heat destabilization
the Doppler Effect
What force can lead to the formation of a star?
nuclear force
The force
gravity
friction
When a star runs out of hydrogen in the core, what do the largest stars start to fuse there?
helium to carbon
hydrogen to helium
iron to uranium
it doesn't fuse anything
What evidence supports the idea that the Universe is expanding?
blue shifts in distant galaxies
red shifts in distant galaxies
red shifts in only the galaxies closest to us
all of these
Which planets did the ancient Greeks not know about?
Uranus and Neptune
Jupiter and Saturn
Mercury and Venus
Saturn and Neptune
