WorksheetsUnit 2 Review: Astronomy
Total questions: 24
Worksheet time: 24mins
Name
Class
Date
1.
During a solar eclipse, the Moon is positioned between Earth and the Sun. During which phase of the Moon does a solar eclipse occur?
a)
gibbous
b)
new
c)
full
d)
crescent
2.
The diagram shows an arrangement of Earth, the Sun, and the Moon.
a)
stronger magnetic field
b)
shorter hours of daylight
c)
early snowfall
d)
high tide
3.
When it is summer in the northern hemisphere of Earth, it is winter in the southern hemisphere. Which statement explains this fact?
a)
With more clouds in the winter, less sunlight can reach the surface of Earth.
b)
Earth is farther from the Sun in winter and closer to the Sun in summer.
c)
Since Earth is tilted on its axis, heat from the Sun gets distributed unequally.
d)
The Sun gives off more heat in the summer and less heat in the winter.
4.
Which type of radiation provides astronomers with the most useful information about high-energy events such as stars colliding?
a)
infrared waves
b)
gamma radiation
c)
infrared radiation
d)
sound waves.
5.
All of these types of waves travel from the Sun to Earth except
a)
ultraviolet waves.
b)
sound waves
c)
infrared waves
d)
light waves
6.
Which fact best supports the importance of sunlight to life on Earth?
a)
Few organisms live in the hot springs of Yellowstone National Park.
b)
Few organisms live in the center of the continent of Antarctica.
c)
Few organisms live in the high peaks of the Himalayas.
d)
Few organisms live in the hottest parts of the Sahara.
7.
Which statement describes the motion of Earth around the sun?
a)
speed increases the closer Earth is to the sun and decreases the farther it is from the sun
b)
speed increases the further Earth is from the sun and decreases the closer it is to the sun
c)
the speed of Earth is constant because the distance remains the same between Earth and the sun
d)
the speed of Earth is constant regardless of its distance from the sun
8.
Why does the moon appear to change during the month?
a)
because the clouds in the sky hide the moon from Earth
b)
because the sun blocks the moon from Earth
c)
because the moon moves father away from Earth
d)
because the moon reflects sunlight as it rotates around Earth
9.
Which statement best describes the relationship between Earth and the Milky Way Galaxy?
a)
Which statement best describes the relationship between Earth and the Milky Way Galaxy?
b)
Earth is part of a galaxy that is nearest to the Milky Way Galaxy.
c)
Earth is located in the Milky Way galaxy but far from the galaxy center.
d)
Earth is positioned in the center of the Milky Way Galaxy
10.
The location of our solar system is illustrated in the diagram of the Milky Way Galaxy. Which conclusion can be reached by the location of our solar system?
a)
Our Sun will be pushed away from the galaxy.
b)
Our solar system is surrounded by newly formed stars.
c)
Our solar system has the only planets in the galaxy.
d)
Our Sun is near the end of its star cycle.
11.
Which discovery revealed that the universe contains many structures composed of millions of stars?
a)
novas
b)
galaxies
c)
solar systems
d)
black holes
12.
All these statements concerning galaxies are accurate except
a)
All these statements concerning galaxies are accurate except
b)
Most can be seen without a telescope.
c)
They are millions of light-years apart.
d)
Space contains several billion galaxies.
13.
A scientist is searching for areas where new solar systems might form. What feature is the scientist looking for?
a)
a star similar to our Sun
b)
a gravitational acceleration of 9.8m/sec^2
c)
a cloud of dust and gas
d)
an oxygen-rich atmosphere
14.
What do the Milky Way Galaxy and other galaxies in the universe have in common?
a)
They are similar in shape
b)
They rotate in the same direction
c)
They have similar elements
d)
They contain the same numbe
15.
In 2004 the Hubble space telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure?
a)
a black hole
b)
a galaxy
c)
a nebula
d)
a solar system
16.
In the 17th century, to estimate the distance to other planets, scientists first used the technique of viewing the planet from two different locations on Earth’s surface. Which characteristic of the planet were the scientists using to calculate the distance from Earth?
a)
apparent brightness
b)
apparent motion
c)
size
d)
location
17.
The Sun and other stars are powered by nuclear fusion. Which of these statements correctly describes one of the processes that occur during nuclear fusion in stars?
a)
Four hydrogen nuclei combine to become a helium nucleus, absorbing energy.
b)
Four helium nuclei combine to become a hydrogen nucleus, releasing energy.
c)
Four hydrogen nuclei combine to become a helium nucleus, releasing energy
d)
Four helium nuclei combine to become a hydrogen nucleus, absorbing energy.
18.
Which type of radiation provides astronomers with the most useful information about high-energy events such as stars colliding?
a)
visible light
b)
gamma radiation
c)
radio waves
d)
infrared radiation
19.
Which of these is the main source of the electromagnetic energy we use?
a)
battery
b)
sun
c)
wind
d)
coal
20.
What is the primary means through which the Sun warms Earth?
a)
fluctuation of gravitational fields
b)
fluctuation of subatomic particles
c)
transfer of energy through conduction
d)
transfer of energy by electromagnetic waves
21.
The diagram illustrates the evolution of a star over time. The mass of Star 1 most likely equals which multiple of the mass of the Sun?
a)
0.5
b)
10
c)
5
d)
100
22.
What keeps stars such as the Sun from collapsing from their own self-gravity?
a)
the centrifugal force created by rapid rotation
b)
the electrical repulsion of nuclei in the plasma
c)
the outward pressure created by nuclear fusion
d)
the gravitational pull created by orbiting planets
23.
Which describes the difference between nuclear fission and nuclear fusion?
a)
Nuclear fission is the process that produces the radiant energy of stars, and nuclear fusion splits a heavier nucleus into smaller nuclei.
b)
Nuclear fission splits a heavier nucleus into smaller nuclei. and nucelar fusion is the process that produces the radiant energy of stars.
c)
Nuclear fission produces the energy in the core of Earth, and nuclear fusion produces energy in nuclear power plants.
d)
Nuclear fission produces energy in nuclear power plants, and nuclear fusion produces the energy in the core of Earth.
24.
Which of the following correctly describes how the Sun produces energy?
a)
Four hydrogen atoms fuse into one helium atom
b)
One hydrogen atom and one lithium atom fuse into one helium atom.
c)
One hydrogen atom and four helium atoms fuse into one lithium atom.
d)
Two helium atoms fuse into one hydrogen atom.
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