F5 Chapter 6.2 Nuclear energy

What happen when two lighter nuclei combine to form a larger nucleus?

• Mass and energy are both created

• Mass and energy are both disappeared

• Mass change into energy

• Energy change into mass

Which of the following is matched with their function correctly?

• A

• B

• C

• D

Which nuclear reactor material will absorb excess neutrons?

• Boron

• Graphite

• Uranium rods

• Heavy water

Study the diagram and find the energy released in this reaction

What type of reaction takes place in the Sun's core?

• Nuclear fission

• Nuclear fusion

• Radioactive decay

• Chemical reaction

What is the main process taking place in nuclear fission?

• Splitting of atomic nuclei

• Combination of atomic nuclei

• Decomposition of molecules

• Dissociation of atoms

What is the main byproduct of nuclear fission to ensure the chain reaction?

• Heat

• Light

• Neutrons

• Gamma rays

What is the main fuel for nuclear fission?

• Uranium

• Plutonium

• Hydrogen

• Carbon

Why the wall of the nuclear reactor is made of thick concrete wall?

• Concrete can absorb neutron

• Concrete can block gamma ray

• Concrete has high heat capacity

• Concrete can slow down fast moving neutron