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Total questions: 11
Worksheet time: 11mins
Name
Class
Date
1.
Which Galaxy is part of our cosmic address?
a)
the Milky Way Galaxy
b)
the Andromeda Galaxy
c)
the Large Magellanic Cloud
d)
the Whirlpool Galaxy
2.
Distances in deep space are so large that scientists often measure them in units of _____
a)
kilometers
b)
astronomical units
c)
gigameters
d)
light years
3.
The light-year is a measure of _____
a)
time
b)
brightness
c)
distance
d)
speed
4.
In one second light can travel around the whole Earth _____
a)
twice
b)
four times
c)
seven times
d)
eleven times
5.
A light year is the distance that light travels _____
a)
going across our galaxy
b)
going once around the Earth
c)
in one year
d)
in one second
6.
If the solar system was the size of a classroom, _____ would be the size of a grain of salt
a)
the Earth
b)
the Sun
c)
the Earth's orbit
d)
the Moon
7.
If the solar system was the size of a classroom, _____ would be the size of a compact disc
a)
the Earth
b)
the Sun
c)
the Earth's orbit
d)
the Moon
8.
If the Milky Way was the size of a classroom, _____ would be the size of a playing die
a)
our solar system
b)
the Sun
c)
the Earth's orbit
d)
our solar neighbourhood
9.
If the observable universe was the size of a classroom, the Milky Way would be _____
a)
the size of a playing die
b)
the size of a grain of salt
c)
microscopic, like a bacterium
d)
smaller than microscopic
10.
How long does it take for light from Proxima Centauri to reach Earth?
a)
4 minutes
b)
8 minutes
c)
4 years
d)
8 years
11.
How long does it take for light from the Sun to reach Earth?
a)
4 minutes
b)
8 minutes
c)
4 years
d)
8 years
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