NEW
Font size
S
M
L
XL
WorksheetsStar Cycle
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
A star forming nebula is...
a)
birthplace of stars
b)
made up of gas and dust
c)
contracts due to gravity to begin forming a star
d)
All are correct
2.
A protostar is the...
a)
end of the star's cycle
b)
beginning of the star's cycle
3.
Main sequence stars are...
a)
the majority of stars in the universe
b)
the stage when the star fuses Hydrogen into Helium
c)
neither is correct
d)
both are correct
4.
A high mass star in main sequence turns into a Super Giant and...
a)
loses mass but expands.
b)
it may fuse heavier elements such as iron.
c)
10% of the star's lifetime
d)
all are correct
5.
A super giant explodes in a supernova...
a)
1. that lasts only a few seconds
b)
2. that lasts millions of years
c)
3. and hydrogen, helium and other fused elements are ejected
d)
1 and 3
6.
A supernova can cause a black hole...
a)
which is so dense that nothing can escape it's gravity, not even light.
b)
which pushes matter away from it.
c)
where only light escapes.
d)
which is actually a bright star.
7.
A supernova can also turn into a neutron star...
a)
when the star's core collapses and forms a dense mass of neutrons.
b)
where not even light can escape.
c)
and then it turns into a planet.
d)
and it does a little dance.
8.
A low mass main sequence star is...
a)
the size of our earth.
b)
150 times bigger than our sun.
c)
like our sun.
d)
so dense not even light can escape it.
9.
A low mass main sequence star expands into a red giant and...
a)
will grow more than 100 times it's original size.
b)
collapses into a black hole.
10.
The core of a red giant collapses and the outer layers of hydrogen, helium and other elements are ejected into a cloud called...
a)
a black hole.
b)
a planetary nebula.
c)
a neutron star.
d)
a super giant.
11.
As the core of the red giant collapses it condenses into a super bright and dense star called...
a)
a brown dwarf.
b)
a red super giant.
c)
a white dwarf.
d)
a black hole.
12.
Stars have a cycle similar to a life cycle, with steps and patterns.
a)
true
b)
false
Reset
