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Category 3 Lesson 2
Test Description: The Universe
Instructions: Answer all questions to get your test result.
1) What is a galaxy?
A
spheres of glowing gas
B
group of stars, gas,and dust held together by gravity
C
initial explosion that resulted in the formation of the universe
D
large cloud of gas and dust where stars are formed
2) What do scientists call the initial explosion that resulted in the formation of the universe?
A
humongous boom
B
big bang
C
giant eruption
D
large explosion
3) What component of the electromagnetic spectrum can we see?
A
radio waves
B
gamma rays
C
visible light
D
microwaves
4) Which of the following is a type of galaxy?
A
spiral
B
elliptical
C
irregular
D
all of the above
5) Which type of stars are very hot but low in brightness?
A
giants
B
main sequence
C
supergiants
D
white dwarfs
6) Which wavelength has the highest frequency?
A
infrared
B
microwaves
C
gamma rays
D
ultraviolet
7) Where is the Sun located?
A
in the center of the Milky Way Galaxy
B
on a spiral arm of the Milky Way Galaxy
C
on a spiral arm of the Andromeda Galaxy
D
near Pluto
8) What is plotted on the x-axis of the H-R Diagram?
A
brightness
B
magnitude
C
temperature
D
luminosity
9) What is a large cloud of gas and dust where stars are formed?
A
supergiant
B
comet
C
black hole
D
nebula
10) What type of galaxy galaxy is shaped like a rounded or flattened ball?
A
spiral
B
none of the above
C
elliptical
D
irregular
*select an answer for all questions
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