Chain reaction

The video explains chain reactions, focusing on nuclear chain reactions where a neutron causes an atom to split, releasing more neutrons and energy. This process, known as nuclear fission, is used in nuclear power stations for electricity and in nuclear weapons for destructive power.

What initiates a nuclear chain reaction?

• A proton striking an atom

• A neutron striking an atom

• An electron striking an atom

• A photon striking an atom

What is the process called when a neutron causes an atom to split and release more neutrons?

• Radioactive decay

• Neutron absorption

• Nuclear fusion

• Nuclear fission

What is released in large amounts during a nuclear fission chain reaction?

• Energy

• Sound

• Heat

• Light

How are controlled nuclear chain reactions utilized?

• To produce solar energy

• To generate electricity

• To power nuclear weapons

• To create medical isotopes

What gives nuclear weapons their immense destructive power?

• Magnetic reactions

• Uncontrolled chain reactions

• Controlled chain reactions

• Chemical reactions