WorksheetsLife Cycle of Stars
Total questions: 8
Worksheet time: 5mins
Name
Class
Date
1.
All stars begin their life in a
a)
Main Sequence
b)
Nebula
c)
Protostar
d)
Black Dwarf
2.
At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called
a)
supernova
b)
pulsar
c)
nuclear fusion
d)
nuclear fission
3.
What are the final two stages of a medium mass star?
a)
white dwarf - black dwarf
b)
neutron star - black hole
c)
supernova - neutron star
d)
pulsar - neutron star
4.
The life cycles of stars are determined by their:
a)
mass (size)
b)
color
c)
distance from Earth
d)
luminosity
5.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
6.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
friction
7.
Most stars are made of which elements?
a)
Hydrogen only
b)
Hydrogen and Lithium
c)
Hydrogen and Sodium
d)
Hydrogen and Helium
8.
Which of the following list the correct order of the life cycle of massive stars?
a)
Nebula --> protostar --> main sequence --> red supergiant --> supernova --> blackhole
b)
Nebula --> protostar --> main sequence --> red giant --> planetary nebula --> white dwarf --> black dwarf
c)
Nebula --> protostar --> main sequence --> supernova --> red giant --> blackhole
d)
Nebula --> protostar --> blackhole --> red supergiant --> supernova --> main sequence
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