Glencoe Science Level Green

Chapter 13: Stars and Galaxies

Stars and Galaxies

1.
Circumpolar constellations __________.
A)appear to circle around the North Star as the Earth rotates.
B)are always located above the North Pole.
C)never appear around the North Pole.
D)are located in a circular constellation.
2.
When a star becomes a supernova its brightness __________.
A)doesn't change
B)increases
C)vanishes
D)decreases
3.
What holds planets, stars, gas, and dust together in a galaxy?
A)friction
B)gravity
C)forces
D)inertia
4.
The Moon orbits Earth and Earth orbits the Sun. What does the Sun orbit?
A)It doesn't orbit.
B)the Milky Way
C)the solar system
D)the universe
5.
Fusion occurs when __________ and __________ combine to make energy.
A)carbon, oxygen
B)hydrogen, oxygen
C)hydrogen, helium
D)carbon, helium
6.
Prominence, or huge arching columns of gas, are thought to be caused by__________.
A)Earth's magnetic field
B)the rotation of the galaxy
C)the magnetic field associated with sunspots
D)the Sun's rotation
7.
Energy produced by the sun reaches the Earth through _________.
A)radiation
B)conduction
C)convection
D)convection and radiation
8.
Particles that escape from the sun's __________ move through space as solar wind.
A)surface
B)photosphere
C)chromosphere
D)corona
9.
What does CME stand for?
A)Coronal Mass Emissions
B)Central Mass Ejections
C)Coronal Materials Ejections
D)Coronal Mass Ejections
10.
The North Star,___________, is positioned almost directly over the North Pole.
A)Sirius
B)Betelgeuse
C)Orion
D)Polaris
11.
__________ is the process that creates energy in the sun.
A)Blue shift
B)Fusion
C)Fission
D)Parallax
12.
Astronomers use a star's __________ to determine how far it is from Earth.
A)parallax
B)parallel
C)size
D)brightness
13.
Another way to define "nebula" is __________.
A)old star
B)young star
C)exploding star
D)dying star
14.
The __________ __________ is a measure of the amount of light received on earth.
A)apparent magnitude
B)absolute magnitude
C)apparent measure
D)absolute measure
15.
Once stars run out of hydrogen and the temperature begins to increase, these stars are said to be __________.
A)a supernova
B)a galaxy
C)a giant
D)a white dwarf
16.
Which, if any, of the three types of galaxies occur the most often?
A)irregular
B)spiral
C)elliptical
D)They occur in equal amounts.
17.
A binary system is composed of ___________ stars.
A)four
B)five
C)three
D)two
18.
Our sun is considered a star of__________ temperature.
A)hot
B)low
C)medium
D)cool
19.
The __________ __________of a star is a measure of the amount of light it gives off.
A)absolute magnitude
B)apparent magnitude
C)absolute solitude
D)apparent strength
20.
An aurora, like the aurora borealis is caused by
A)solarwind
B)CME's
C)particles from solar flares
D)solar flares
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