WorksheetsThe Sun
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
If the stars in our galaxy were ranked in order, increasing in size, our Sun would be _____
a)
well below the midpoint
b)
around the midpoint
c)
slightly above the midpoint
d)
in the top 10%
2.
The vast majority of stars are _____
a)
red dwarfs
b)
yellow dwarfs
c)
yellow giants
d)
neutron stars
3.
Compared to the diameter of the Earth, how wide is the Sun?
a)
10 times wider
b)
100 times wider
c)
1,000 times wider
d)
10,000 times wider
4.
How many Earths could fit inside the Sun?
a)
about 13 thousand
b)
about 130 thousand
c)
about 1.3 million
d)
about 13 million
5.
What is the temperature of the Sun's core?
a)
15 thousand degrees Celsius
b)
150 thousand degrees Celsius
c)
1.5 million degrees Celsius
d)
15 million degrees Celsius
6.
In the Sun's core, hydrogen atoms fuse together to form the heavier element _____
a)
sodium
b)
helium
c)
iron
d)
uranium
7.
How often does the Sun lose a mass equivalent to 15 Empire State Buildings?
a)
every second
b)
every minute
c)
every hour
d)
every day
8.
In the Sun, where does hydrogen fusion occur?
a)
only in the core
b)
in the core and convective zone
c)
from the core out to the photosphere
d)
from the core out to the corona
9.
Heat transfer by the buoyant motion of the Sun's heated gases is called _____
a)
conduction
b)
convection
c)
thermal radiation
d)
collusion
10.
Which layer is thin enough to be transparent, and considered the Sun's surface?
a)
the convective zone
b)
the photosphere
c)
the chromosphere
d)
the corona
11.
Which ethereally thin layer is sort of like the Sun’s atmosphere?
a)
the convective zone
b)
the photosphere
c)
the chromosphere
d)
the corona
12.
What name is given to the stream of subatomic particles moving away from the Sun?
a)
solar wind
b)
aurora borealis
c)
cosmic dust
d)
stellar gust
13.
The speed of the solar wind is usually well over _____
a)
a hundred kilometers per hour
b)
a thousand kilometers per hour
c)
a million kilometers per hour
d)
a billion kilometers per hour
14.
During hydrogen fusion in the Sun’s core, the energy is released mostly in the form of _____
a)
light
b)
heat
c)
chemical energy
d)
kinetic energy
15.
How long does it take for the energy from the Sun's core to work it's way out?
a)
close to 200 years
b)
close to 2,000 years
c)
close to 20,000 years
d)
close to 200,000 years
16.
The Sun is made of "a gaseous soup of charged particles", called _____
a)
a plasma
b)
ionizing radiation
c)
aurora
d)
neutral gases
17.
What is the term for a dark region on the surface of the Sun?
a)
a solar vortex
b)
a field flux
c)
a sunspot
d)
a stellar speck
18.
Prominences are huge arcs of material flowing along loops of _____
a)
gravitational field lines
b)
electric field lines
c)
magnetic field lines
d)
nuclear field lines
19.
What is the name for the localized explosion that blasts material off the surface of the Sun?
a)
a filament
b)
a prominence
c)
a solar flare
d)
a coronal mass ejection
20.
What is the name for the "huge and strong" explosions that occur high off the Sun's surface?
a)
filaments
b)
prominences
c)
solar flares
d)
coronal mass ejections
21.
The Earth’s magnetic field can interact with the solar particles to form _____
a)
arrhythmia
b)
arboreal
c)
aurora
d)
aorta
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