Category 3 Lesson 2 Question Preview (ID: 56187)


The Universe. TEACHERS: click here for quick copy question ID numbers.

What is a galaxy?
a) large cloud of gas and dust where stars are formed
b) initial explosion that resulted in the formation of the universe
c) group of stars, gas,and dust held together by gravity
d) spheres of glowing gas

What do scientists call the initial explosion that resulted in the formation of the universe?
a) big bang
b) large explosion
c) giant eruption
d) humongous boom

What component of the electromagnetic spectrum can we see?
a) radio waves
b) gamma rays
c) microwaves
d) visible light

Which of the following is a type of galaxy?
a) spiral
b) elliptical
c) irregular
d) all of the above

Which type of stars are very hot but low in brightness?
a) supergiants
b) giants
c) white dwarfs
d) main sequence

Which wavelength has the highest frequency?
a) gamma rays
b) microwaves
c) ultraviolet
d) infrared

Where is the Sun located?
a) near Pluto
b) in the center of the Milky Way Galaxy
c) on a spiral arm of the Andromeda Galaxy
d) on a spiral arm of the Milky Way Galaxy

What is plotted on the x-axis of the H-R Diagram?
a) brightness
b) temperature
c) magnitude
d) luminosity

What is a large cloud of gas and dust where stars are formed?
a) nebula
b) black hole
c) supergiant
d) comet

What type of galaxy galaxy is shaped like a rounded or flattened ball?
a) spiral
b) irregular
c) elliptical
d) none of the above

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