Radiation

What is Fission?

What is a Chain Reaction?

What is Fusion?

• Fusion is a nuclear reaction in which two light atomic nuclei combine to form a heavier nucleus, releasing energy.

• Fusion is a process where a heavy nucleus splits into two lighter nuclei, absorbing energy.

• Fusion is a chemical reaction between two molecules forming a new compound.

• Fusion is the process of cooling substances to extremely low temperatures.

A fission reaction creates energy by:

• Combining two light nuclei to form a heavier nucleus

• Splitting a heavy nucleus into smaller nuclei, releasing energy

• Rearranging electrons in an atom

• Absorbing energy to form a stable nucleus

A chain reaction is:

• A process in which the products of one reaction initiate further reactions.

• A reaction that occurs only once.

• A reaction that does not release energy.

• A process that stops after the first step.

Fusion and plasma containment are important in the generation of energy because:

• They allow the release of large amounts of energy by combining atomic nuclei.

• They help cool down nuclear reactors.

• They are used to store electrical energy.

• They prevent the formation of radioactive waste.

Which of the following best describes a main difference between fission and fusion?

• Fission splits nuclei, fusion combines nuclei.

• Fission combines nuclei, fusion splits nuclei.

• Both fission and fusion split nuclei.

• Both fission and fusion combine nuclei.

There are two types of nuclear reaction: nuclear ________.

• fission

• fusion

• decay

• combustion

There are two types of nuclear reaction: nuclear ________.

• fusion

• fission

• decay

• combustion

According to the information provided, how many types of fission exist?

• 1

• 2

• 3

• 4