Modern Physics - Nuclear Physics - SS2 Physics Past Questions and Answers - page 5
Which of the following particles is commonly emitted in beta decay?
Alpha particle
Proton
Neutron
Nuclear reactions are primarily governed by:
Electromagnetic forces
Gravitational forces
Strong nuclear forces
Weak nuclear forces
The process of nuclear fission involves:
Combining small atomic nuclei to form a larger nucleus.
Splitting a heavy atomic nucleus into smaller nuclei.
The release of energy through the formation of new compounds.
The decay of a radioactive isotope.
Explain the process of nuclear fission and its significance in energy production.
Nuclear fission is the process in which a heavy atomic nucleus, such as uranium-235 or plutonium-239, is split into two or more smaller nuclei, releasing a large amount of energy. This process is achieved by bombarding the nucleus with a neutron, causing it to become unstable and split apart. The released energy is in the form of the kinetic energy of the resulting fragments and the emission of additional neutrons. Nuclear fission is significant in energy production as it is used in nuclear power plants to generate electricity. The heat produced by the fission reactions is used to generate steam, which drives a turbine connected to a generator. It is a highly efficient and reliable source of energy with a high energy density.
Nuclear fission involves:
Combining two light atomic nuclei
Splitting a heavy atomic nucleus
Emitting high-energy gamma radiation
Converting mass into energy
In a nuclear fission reaction, the released energy is primarily in the form of:
Alpha particles
Neutrons
Protons
Electromagnetic waves
Which of the following materials is commonly used as fuel in nuclear fission reactors?
Deuterium
Hydrogen
Uranium-235
Helium
Nuclear fusion involves:
Splitting a heavy atomic nucleus
Combining two light atomic nuclei
Emitting beta particles
Absorbing high-energy gamma radiation
The primary source of energy in the Sun is:
Nuclear fission
Nuclear fusion
Radioactive decay
Chemical reactions
Which of the following elements is commonly used as fuel in nuclear fusion reactions?
Uranium
Plutonium
Deuterium
Thorium