Nuclear Fusion and Fission Quiz

What is the primary difference between nuclear fusion and fission?

• Fission does not involve any change in nucleon numbers.

• Fusion splits large nuclei into smaller ones.

• Fusion combines small particles into larger ones.

• Fission combines small particles into larger ones.

How is binding energy per nucleon related to the stability of an element?

• Binding energy per nucleon does not affect stability.

• Higher binding energy per nucleon means more stability.

• Lower binding energy per nucleon means more stability.

• Higher binding energy per nucleon means less stability.

What happens to the binding energy per nucleon when fusion occurs to the left of iron on the graph?

• It increases, releasing energy.

• It decreases, absorbing energy.

• It decreases, releasing energy.

• It remains constant.

In nuclear reactions, what form does the released binding energy take?

• Thermal energy

• Kinetic energy

• Potential energy

• Electrical energy

How can you identify a nuclear fusion reaction from a given example?

• A nucleus emits an alpha particle.

• A neutron is absorbed by a nucleus.

• Two smaller particles combine to form a larger particle.

• A single large nucleus splits into smaller nuclei.

What is the total binding energy change in a fusion reaction if the initial binding energy is 4.48 MeV and the final is 8.34 MeV?

• 3.86 MeV

• 12.82 MeV

• 8.34 MeV

• 4.48 MeV

What is the binding energy per nucleon for uranium-238 if the total binding energy is 1802.31 MeV?

• 8.34 MeV

• 7.07 MeV

• 6.57 MeV

• 7.57 MeV

How is the ratio of kinetic energy of helium to thorium determined in a decay reaction?

• By comparing their velocities.

• By comparing their masses.

• By comparing their binding energies.

• By comparing their nucleon numbers.

What is the energy released when two hydrogen-2 nuclei fuse to form helium-4, according to the graph?

• 24 MeV

• 4 picojoules

• 24 picojoules

• 4 MeV

In a fission reaction, how does the total mass after the reaction compare to before?

• The total mass decreases.

• The total mass doubles.

• The total mass increases.

• The total mass remains the same.