Worksheet: Nuclear Fission and Fusion
In this worksheet, we will practice differentiating between nuclear fusion and fission reactions and writing balanced nuclear equations for both processes.
A nuclear reaction is described by the equation:
Identify the particle .
Which of the following statements is true?
- ANuclear fission is endothermic.
- BBinding energy per nucleon decreases in nuclear fusion.
- CNeutron bombardment is needed for nuclear fission to occur.
- DNeutrons can be released in both nuclear fusion and nuclear fission processes.
- EThe principal nuclear reaction in the sun involves emission.
Why is a high temperature required for nuclear fusion?
- AFusing nuclei must have enough kinetic energy to overcome the strong nuclear force between nucleons.
- BThe kinetic energy of fusing nuclei must be greater than the increase in binding energy.
- CFusing nuclei must have enough kinetic energy to drive the conversion of protons to neutrons.
- DFusing nuclei must have enough kinetic energy to overcome the repulsion between their positive charges.
- EFusing nuclei must have enough kinetic energy to enter excited states before the collision.
Which of the following could be increased to increase the critical mass of a fissile material?
- ANeutron yield
- BSample purity
- CSample density
- ESample volume/area ratio
Nuclear fission is usually followed by a series of decays. How do these decays stabilize the smaller nuclei?
- AThe atomic mass increases.
- BThe proton/neutron ratio decreases.
- CThe atomic mass decreases.
- DThe neutron/proton ratio decreases.
- EThe nuclear charge increases.
In a nuclear reaction, an atom of collides with an atom of . Which of the following are not potential products of this reaction?