Fusion and Fission

Front

What is nuclear fusion?

Back

A nuclear reaction in which two lighter atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is nuclear fission?

Back

A nuclear reaction in which a heavy nucleus splits into two or more lighter nuclei, along with the release of energy.

Front

What is the primary difference between fusion and fission?

Back

Fusion combines lighter nuclei to form heavier ones, while fission splits heavier nuclei into lighter ones.

Front

What is an example of a fusion reaction?

Back

The fusion of hydrogen isotopes (deuterium and tritium) to form helium.

Front

What is an example of a fission reaction?

Back

The fission of uranium-235 when it absorbs a neutron and splits into lighter elements.

Front

What is the role of temperature in nuclear fusion?

Back

High temperatures are required to overcome the electrostatic repulsion between positively charged nuclei.

Front

What is the role of neutrons in nuclear fission?

Back

Neutrons can initiate fission reactions by colliding with heavy nuclei, causing them to split.

Front

What is the energy source of the sun?

Back

The sun generates energy through nuclear fusion of hydrogen into helium.

Front

What are the products of nuclear fusion?

Back

The primary products are a heavier nucleus and energy, often in the form of light and heat.

Front

What are the products of nuclear fission?

Back

The products include lighter nuclei, free neutrons, and a significant amount of energy.