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WorksheetsStellar Fusion
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
What is this process?
a)
Fission
b)
Fusion
c)
Combustion
2.
Where does this process occur in nature?
a)
Earth's core
b)
Sun
c)
Atmosphere
3.
When a young, developing star becomes massive enough and dense enough, the process of _______ begins.
a)
H --> He fusion
b)
He --> C fusion
c)
He --> C --> O fusion
d)
fission
4.
When stars are fusing hydrogen into helium, and are neither expanding nor contracting, they are said to be...
a)
dying
b)
in hydrostatic equilibrium
c)
white dwarfs
d)
red hypergiants
5.
What are some of the outcomes of nuclear fusion?
a)
Produce larger materials from the collision of smaller materials.
b)
Release energy.
c)
Produce smaller materials from the collision of larger materials.
d)
Produce larger materials from the collision of smaller materials & Release energy
6.
In nuclear fusion, smaller atoms are forced together to create larger atoms. Does this process release, absorb or maintain energy?
a)
Absorb energy
b)
Maintain energy
c)
Release energy
7.
Where does fusion occur naturally?
a)
Underwater
b)
All around us
c)
In the radioactive waste
d)
On the sun
8.
Which atoms combine together during fusion reaction on the sun?
a)
Helium and Hydrogen atoms
b)
Hydrogen atoms
c)
Hydrogen and Lithium atoms
d)
Hydrogen and Carbon atoms
9.
Hydrogen is the primary fuel
a)
Fission
b)
Fusion
c)
Radioactive Decay
10.
The process being modelled here is called what?
a)
hydrodynamic equilibrium
b)
hydrostatic equilibrium
c)
stellar balance
d)
nucleosynthesis
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