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WorksheetsAstronomy Review
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
What causes seasons on the Earth?
a)
The axial tilt of the Earth
b)
The Earth moving closer and farther away from the Sun
c)
The amount of cloud cover
d)
The brightness of the Sun
2.
Which of the following statements about the Moon is true?
a)
It does not rotate.
b)
It rotates once every Earth day.
c)
Its dark side always faces away from the Earth.
d)
From Earth we always see the same side of the Moon.
3.
How much time does it take the Moon to go through all of its phases?
a)
One day
b)
One week
c)
One month
d)
One year
4.
In what phase is the Moon brightest?
a)
New moon
b)
First quarter
c)
Full moon
d)
Last quarter
5.
In what phase must the Moon be for a total solar eclipse?
a)
New moon
b)
First quarter
c)
Full moon
d)
Last quarter
6.
In what phase does the Moon need to be for a total lunar eclipse?
a)
New moon
b)
First quarter
c)
Full moon
d)
Last quarter
7.
How long does a total solar eclipse normally last?
a)
seconds
b)
minutes
c)
hours
d)
days
8.
Which part of the Sun becomes visible during a total solar eclipse?
a)
The corona
b)
The photosphere
c)
The core
d)
Sunspots
9.
Why can a solar eclipse NOT be seen from Mars?
a)
The moons are in the wrong plane
b)
The moons are too small
c)
The Sun is too far away
d)
The moons are not round
10.
When our Sun starts to die, it will become a ____________ that will engulf Mercury, Venus, and maybe the Earth.
a)
white dwarf
b)
blue supergiant
c)
red giant
d)
black hole
11.
Other than the Sun, which object in the solar system has the most mass?
a)
Saturn
b)
The asteroid belt
c)
Jupiter
d)
Your mom!
12.
True or false: Planets shine by their own light.
a)
True
b)
False
13.
What do the letters AU stand for?
a)
Astronomical Universe
b)
After Uranus
c)
Asteroid Ursa
d)
Astronomical Unit
14.
What does "planet" mean?
a)
Chunk of rock
b)
Wanderer
c)
Explorer
d)
Little star
15.
Which one of the following is NOT part of the criteria that defines an object as a planet as defined by the IAU?
a)
The object is in orbit around its host star.
b)
The object has sufficient mass to assume a nearly spherical shape.
c)
The object has "cleared the neighborhood" around its orbit.
d)
The object has at least one moon.
16.
What does the statement "We are star snot" mean?
a)
Supernovae are so intense that they fuse heavier elements together beyond what can be achieved in a star's core.
b)
Electromagnetic radiation from a star is responsible for human mucous production.
c)
Looking directly at the Sun causes uncontrollable sneezing fits.
d)
Coronal ejections from the Sun can wipe out our electrical power grid.
17.
The heaviest element that can be produced by nuclear fusion in a star's core is
a)
helium.
b)
carbon.
c)
oxygen.
d)
iron.
18.
How many rings does Saturn have?
a)
1
b)
5
c)
100
d)
thousands
19.
What is the name of the space probe that is considered outside of the solar system?
a)
New Horizons
b)
Voyager
c)
Vanera
d)
Hubble
20.
Stars are classified based on their
a)
surface temperature.
b)
size.
c)
distance from us.
d)
luminosity.
21.
How do we know that the universe is expanding?
a)
The red shift of stars
b)
It takes longer and longer to send a message to distant stars
c)
Cosmic background microwave radiation
d)
Gravitational lensing
22.
Which has a longer life, a blue supergiant or a red dwarf?
a)
The blue supergiant
b)
The red dwarf
c)
It depends on their location in their galaxy
d)
They are both the same
23.
What is the correct term for a shooting star?
a)
Meteor
b)
Meteorite
c)
Meteoroid
d)
Wishing rock
24.
Where is the main asteroid belt?
a)
Between Jupiter and Saturn
b)
Between Earth and Venus
c)
Between Earth and Mars
d)
Between Mars and Jupiter
25.
What are most meteor showers due to?
a)
asteroids close to the Earth
b)
small particles in orbit around the Earth
c)
dust grins from the tails of comets
d)
global warming
26.
Where does the Sun's energy come from?
a)
fusion
b)
fission
c)
a really long extension cord
d)
chemical bonding
27.
What are most stars made of?
a)
Helium
b)
Hydrogen
c)
Water
d)
Methane
28.
True or false:
Every high energy solar flare will have negative effects on Earth.
Every high energy solar flare will have negative effects on Earth.
a)
True
b)
False
29.
What color are the hottest stars?
a)
Red
b)
Green
c)
Blue
d)
Orange
30.
How long do stars like our Sun live?
a)
1 billion years or so
b)
10 billion years or so
c)
100 billion years
d)
Forever
31.
Which property governs the fate of a star?
a)
Luminosity
b)
Mass
c)
Size
d)
Surface Temperature
32.
What is the diameter of the Milky Way?
a)
100 thousand light years
b)
100 thousand astronomical units
c)
30 thousand light years
d)
3 thousand light years
33.
Which is NOT a type of galaxy?
a)
Spiral
b)
Elliptical
c)
Peculiar
d)
Regular
34.
What part of the electromagnetic spectrum do scientists use to study the universe?
a)
Visible light
b)
X-rays
c)
Infrared
d)
All of it
35.
If the lines in a star's spectrum are shifted toward the red end of the spectrum, it means that
a)
the star is moving away from us.
b)
the star is moving towards us.
c)
The star is not moving, relative to us.
d)
The star is the Sun.
36.
A galaxy with a high degree of redshift means that the galaxy is
a)
moving slowly toward the observer.
b)
close to the Milky Way galaxy.
c)
very far from the Milky Way.
d)
not moving with the expansion of the universe.
37.
Even though the universe is only about 14 billion years old, we can see nearly 50 billion light years because
a)
we have really good space telescopes.
b)
space itself is expanding.
c)
of gravitational lensing.
d)
space is contracting.
38.
Why do we use robots for space exploration?
a)
They have given us knowledge we could not have gotten otherwise.
b)
They can always replace human exploration.
c)
They are more expensive than sending people.
d)
There are no associated advantages or disadvantages
39.
How do we know dark matter exists?
a)
We found it in underground detectors.
b)
From the light it absorbs
c)
Gravitational lensing
d)
From its effects on the Earth
40.
How do we know that dark energy exists?
a)
From the light it emits.
b)
Gravitational lensing
c)
The accelerating expansion of the universe
d)
From the trouble little kids get into
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