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15
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Which of the following choices lists the colors of stars from hottest to coolest...
red, yellow, orange, white, blue
yellow, orange, red, blue, white
orange, red, white, blue, yellow
blue, white, yellow, orange, red
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15
×
The change in position of a nearby star as seen from different points on Earth's orbit is...
parallax
blue shift
Doppler effect
red shift
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15
×
Which is the closest star to earth?
Pluto
Orion
the sun
Polaris
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15
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Constellations appear to move across the sky because....
the sun is moving.
all of these.
the earth is moving.
the constellations are moving.
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15
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A constellation .....
is a group of stars that form a pattern.
revolves around the un.
is a group of planets.
is seen every night all year long.
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15
×
Which layer of the sun has the densest material?
the radiative zone
the core
the corona
the convection zone
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15
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The surface temperature of a star is plotted against its luminosity on the
cosmic background radiation map.
parallax graph.
Doppler effect.
H-R diagram.
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15
×
A shooting star is...
a fairy tale
a sun blowing up
a meteor entering earth's atmosphere
a star shooting across the sky
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×
monster
Reset all scores!
Oops!
×
shark
Other team loses 25 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
×
seesaw
Swap points!
Oops!
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rocket
Go to first place!
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×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
15
×
The observed change in the frequency of a wave when either the source or observer is moving...
Doppler effect
apparent magnitude
absorption spectra
parallax
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banana
Go to last place!
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magnet
Take 25 points!
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×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
15
×
Shadows change length during the day because....
because the moon gets in front of the sun.
because people move.
the sun is moving
of the earth's position in front of the sun.
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15
×
Which type of star is most likely to be found on the main sequence?
neutron star
red supergiant
yellow star
white dwarf
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15
×
The number of hydrogen atoms that fuse to form a helium atom is...
two
six
eight
four
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lifesaver
Give 10 points!
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seesaw
Swap points!
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shark
Other team loses 20 points!
Okay!
×
lifesaver
Give 20 points!
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×
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