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Topic 3.1
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1
In the northern hemisphere, stars in the night sky appear to move…
A)west to south.
B)east to north.
C)west to east.
D)east to west.
2
Which of the following are circumpolar constellations?
A)Big Dipper, Ursa Major, Draco
B)Big Dipper, Milky Way, Ursa Major
C)Ursa Minor, Draco, Polaris
D)Ursa Minor, Cassiopeia, Jupiter
3
The circular pattern of planets revolving around the Sun is due to…
A)gravitational pull.
B)gravitational push.
C)electrical attraction.
D)magnetic attraction.
4
Stars can be described as…
A)a random collection of white coloured objects in the night sky.
B)a pattern of objects in the night sky that reflect light.
C)massive balls of superheated gases that radiate heat and light.
D)massive balls of cooled gases that radiate heat and light.
5
In which galaxy is Earth located?
A)the Big Dipper
B)the Milky Way
C)Andromeda
D)Polaris
6
One astronomical unit (AU) is equal to the distance between…
A)Earth and Venus.
B)Earth and its nearest galaxy.
C)the Sun and Mars.
D)the Sun and Earth.
7
What unit of measurement do astronomers use to measure the distance between galaxies?
A)the astronomical unit
B)the light-year
C)the kilometre
D)the micron





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