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