FISSION/FUSION

Multiple Choice

fission is...

• a nuclear reaction where an atomic nucleus splits into smaller parts
• a process where two atomic nuclei combine to form a heavier nucleus

Multiple Choice

What is the fourth state of matter

• gas
• plasma

Multiple Choice

What are ions

• Ions are only found in solid materials and cannot exist in liquids or gases.
• Ions are charged particles formed by the loss or gain of electrons.

Multiple Choice

what is the difference between fission and fusion

• Fission splits heavy nuclei; fusion combines light nuclei.
• Fission combines heavy nuclei; fusion splits light nuclei.
• Fission occurs in stars; fusion occurs in nuclear reactors.

Multiple Choice

what is the two types of science called for fission and fusion

• nuclear physics and plasma physics.

• Nuclear fission and nuclear fusion

Multiple Choice

What is nuclear physics

• The study of chemical reactions between molecules.
• Nuclear physics is the study of atomic nuclei and their interactions.

Multiple Choice

What is plasma physics

• Plasma physics is the study of solid materials and their properties.
• Plasma physics is the study of the behavior and properties of plasma, a state of matter made up of charged particles.

Multiple Choice

What is ions

• Ions are charged particles formed by the loss or gain of electrons.
• Ions are neutral particles that do not interact with electric fields.

Multiple Choice

What are the typical products of a fusion reaction between two hydrogen isotopes?

• Helium and a neutron

• Hydrogen-2 and a proton

Multiple Choice

  What shields nuclear reactors from radiation?

• Wood and plastic
• Concrete, lead, and steel

Multiple Choice

What is nuclear meltdown?

• A nuclear meltdown is a severe nuclear reactor accident where the core overheats and melts, potentially releasing radioactive materials.
• A nuclear meltdown is a process where nuclear fuel is safely stored and managed.

Multiple Choice

Which is more stable: small nuclei or medium-sized nuclei?

• Medium-sized nuclei are more stable.
• Small nuclei are more stable.

Multiple Choice

What is the Coulomb barrier in fusion

• The Coulomb barrier is the temperature required for fusion to occur.
• The Coulomb barrier is the energy barrier that charged nuclei must overcome to undergo fusion.

Multiple Choice

What particles start a fission chain reaction?

• Protons
• Neutrons

Multiple Choice

Why is fusion considered harder to achieve on Earth than fission?

• Fusion is harder to achieve on Earth than fission due to the extreme conditions required for fusion.
• Fusion can be achieved at room temperature unlike fission.

Multiple Choice

Which reaction releases more energy per reaction: fission or fusion?

• Fusion
• Neither fission nor fusion releases energy
• Fission

Multiple Choice

What is a chain reaction in nuclear fission?

• A chain reaction in nuclear fission is a self-sustaining series of fission events initiated by the neutrons released from previous fissions.
• A chain reaction in nuclear fission is a one-time event that stops after the initial fission.

Multiple Choice

What is the role of high temperature and pressure in fusion?

• High temperature and pressure slow down atomic nuclei, preventing fusion.
• High temperature and pressure enable atomic nuclei to collide and fuse, overcoming repulsion and increasing reaction rates.

Multiple Choice

Can nuclear fusion produce radioactive waste?

• Yes, but significantly less than nuclear fission.
• No, nuclear fusion does not produce any radioactive waste.
• I don't know

Multiple Choice

Name one major challenge in building a fusion power plant

• Achieving and maintaining the required high temperatures and pressures.
• The cost of building a fusion power plant is negligible.

Multiple Choice

What type of nuclear reaction occurs in atomic bombs?

• Nuclear fission
• Nuclear fusion

Multiple Choice

  Which produces more long-term radioactive waste: fission or fusion?

• Fission produces more long-term radioactive waste than fusion.
• Fusion produces more long-term radioactive waste than fission.

Multiple Choice

  What is plasma in the context of nuclear fusion?

• Plasma is an ionized state of matter essential for nuclear fusion.
• Plasma is a solid state of matter used in nuclear fusion.

Multiple Choice

What is nuclear binding energy?

• Nuclear binding energy is the energy released during nuclear fission.
• Nuclear binding energy is the energy that holds the protons and neutrons together in an atomic nucleus.

Multiple Choice

Why is fusion considered cleaner than fission

• Fusion produces more radioactive waste than fission.
• Fusion is considered cleaner than fission because it generates less radioactive waste and uses abundant fuel sources.

Multiple Choice

What element is commonly used as fusion fuel in experiments?

• Deuterium and Tritium
• Helium-3

Multiple Select

  What happens to mass during fusion or fission?

• Mass decreases during fusion or fission.
• It turns to energy.

Multiple Choice

  Can fusion happen at room temperature?

• No, fusion cannot happen at room temperature.
• Yes, fusion can occur at room temperature.