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Worksheets(Savvas 10.3 and 10.4) Transmutation, Fission, Fusion
Total questions: 28
Worksheet time: 28mins
The strong nuclear force is
the attractive force that holds protons and neutrons together in the nucleus
the force responsible for gravity
the attractive force between the electrons and the nucleus
the repulsive force between protons in the nucleus
The strong nuclear force on a proton or neutron is much greater in a large nucleus than in a small nucleus.
True
False
Fission is
the splitting of a heavy nucleus into lighter nuclei, releasing energy.
the combination of two light nuclei to form a heavier nucleus.
the process of losing electrons from an atom.
the emission of alpha particles from a nucleus.
Fusion is
the splitting of a heavy nucleus into lighter nuclei, releasing energy.
the combination of two light nuclei to form a heavier nucleus.
the process of losing electrons from an atom.
the emission of alpha particles from a nucleus.
In Einstein’s mass-energy equation, E = mc2 , the symbol "c" represents
the charge on a proton.
the speed of light.
the charge on an electron.
the speed of sound.
During nuclear reactions the total amount of mass and energy is conserved.
True
False
Describe what happens during a meltdown in a nuclear power source.
The reactor core overheats and releases radiation.
The reactor produces more electricity.
The reactor shuts down safely.
The reactor is unaffected.
Transmutation is defined as
the process of changing one element into another.
the process of melting metals.
the process of dissolving substances in water.
the process of separating mixtures.
Scientists perform artificial transmutations by
exposing elements to high temperatures.
bombarding nuclei with particles.
mixing chemicals in a laboratory.
cooling elements to very low temperatures.
Which process occurs naturally in the center of stars like the Sun?
fission
chemical
fusion
This diagram represents what type of equation?
Fission
Fusion
Alpha Decay
Beta Decay
Which type of reaction requires very high temperature and pressure?
How do current nuclear power-plants work?
Fusion
Half-life
Fission
Fusion or fission
One disadvantage of nuclear energy produced through fission is ___.
it is a fossil fuel
it leaves behind radioactive waste
it emits large amounts of pollution into the atmosphere
there are no disadvantages
The minimum mass of fissionable material necessary for an uncontrolled chain reaction is
critical mass.
neutron mass.
isotope mass.
molar mass.
The chain reaction results from the fission process producing ______ that can then strike and split neighboring nuclei.
electrons
neutrons
protons
ions
What are some disadvantages to using nuclear fusion? (Choose two answers.)
produces radioactive waste
requires high temperatures
produces carbon compounds that cause climate change
expensive
What are some disadvantages to using nuclear fission? (Choose two answers)
requires storage of radioactive waste
produces carbon compounds that cause climate change
the fuel can cause dangerous malfunctions
this source of energy depends on climate and location
Over very short distances, the strong nuclear force is much greater than the electric forces among protons.
true
false
Radioactive decay
The sun's core
What occurs in both fusion and fission reactions?
Small amounts of energy are converted into large amounts of matter.
Small amounts of matter are converted into large amounts of energy.
Heavy nuclei are split into lighter nuclei.
Light nuclei are combined into heavier nuclei.
__________ are used to absorb neutrons and limit chain reactions.
Control rods
Lead shields
Liquid coolants
Reactors
Which of the following elements is most likely to undergo a fusion reaction?
Hydrogen
Iron
Carbon
Uranium
Which of the following elements is most likely to undergo a fission reaction?
Hydrogen
Iron
Carbon
Uranium
The image represents a _______ reaction.
fusion
fission
alpha decay
beta decay
