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WorksheetsFission and Fusion
Total questions: 18
Worksheet time: 5hrs 45mins
Nuclear (a) is the splitting of an atom into two smaller atoms, where nuclear (b) combines two (c) atoms into a (d) atom.
Which of the following attributes do nuclear fission and fusion have in common?
Produce huge amounts of energy
Emits particles
Transforms one element into another
No carbon emissions
Select the attributes unique to nuclear fission.
Can become uncontrollable
Hydrogen is the fuel source
Used in atomic bombs
Takes place only in research
Controlled by lead control rods
Select the attributes unique to nuclear fusion.
Can become uncontrollable
Hydrogen is the fuel source
Process in the sun
Started by overcoming electromagnetic repulsion of protons
Controlled by magnets and lasers
The mass of the product is less than the original nucleus
Which process is responsible for the energy produced by the Sun?
Gravitational collapse
Nuclear fission
Nuclear fusion
Chemical reactions
In the core of the Sun, Hydrogen atoms fuse into which element?
Carbon
Lithium
Neon
Nitrogen
Helium
Which of the following is not produced when Carbon fuses to heavier elements?
neon
magnesium
helium
sodium
radioactivity is
the energy that came from an atomic radius change
The energy that is released from the nucleus of the atom
the energy that is released from the outer electron shell of the atom
What is the significance of Einstein's equation E=mc2 in nuclear physics?
It describes the relationship between energy and mass in chemical reactions.
It explains the conservation of momentum in nuclear reactions.
It shows that mass can be converted into energy and vice versa, which is the principle behind nuclear reactions.
It calculates the speed of light in a vacuum.
What is the main environmental concern associated with nuclear energy generation?
Air pollution
Noise pollution
Radioactive waste
Water consumption
In nuclear energy production, what is the role of the moderator (control rods) in a nuclear reactor?
To speed up the neutrons.
To cool down the reactor core.
To slow down the neutrons to sustain the chain reaction.
To convert the nuclear energy into electrical energy.
What is the main advantage of using nuclear fusion over nuclear fission for energy production?
Fusion produces more radioactive waste than fission.
Fusion requires less fuel than fission.
Fusion produces more energy per unit of fuel than fission.
Fusion can only occur at room temperature.
What percent of the world's electricity comes from nuclear reactors?
Nuclear fission of Uranium-235 causes a chain reaction because
A single neutron splitting a U-235 atom creates 3 more neutrons that can split 3 more U-235 atoms.
The reaction creates a large amount of heat.
It does not create a chain reaction.
Neutrons weigh much more than electrons.
What is the primary difference between nuclear fusion and nuclear fission?
Fusion splits a heavier nucleus into two lighter nuclei, while fission combines two lighter nuclei into a heavier one.
Fusion combines two lighter nuclei into a heavier one, while fission splits a heavier nucleus into two lighter nuclei.
Both processes involve splitting heavier nuclei into lighter ones.
Both processes involve combining lighter nuclei into a heavier one.
Organize these options into the right categories
Atoms combining into a larger atom
Atom splitting into smaller atoms
Releases lots of energy
Requires high temperatures and pressures to begin
Must force atoms to overcome electromagnetic force
Can become uncontrollable
Triggered by a neutron
Fueled by Uranium
Fueled by hydrogen
Can create nuclear fallout
Produces radioactive waste
Produces Helium
Process of current nuclear power plants
Process of the sun
Process of atomic bombs
Requires control rods
Controlled by magnets and lasers
Heats water into steam to produce electricity
Transforms fuel into a new element
Source of clean energy to replace fossil fuels
