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WorksheetsAstronomical Unit
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
A light year is the
a)
distance that light travels in one year
b)
Speed at which light travels
2.
What is a galaxy?
a)
A large storm of comets.
b)
A parallel universe that existed before the Big Bang.
c)
A collection of stars, dust, and gas bound together by gravity
d)
Unknown
3.
A good way to practice parallax is with your
a)
Foot
b)
Thumb
4.
The apparent shift in the position of an object when viewed from different locations is called
a)
Parallelogram
b)
Parallax
5.
The average distance between the earth and the sun is the
a)
astronomical unit
b)
Light year
6.
Who first discovered the size of Earth?
a)
Romans
b)
Greeks
7.
A parsec is
a)
angle of a star's shift over the course of a year
b)
the smallest unit for time
8.
We can use brightness of stars to measure distance because
a)
the strength of light decrease by the square of the distance
b)
light is a constant and always is bright
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