Nuclear Fission and Nuclear Power Stations

The video tutorial explains nuclear fission, a process where a nucleus splits into smaller parts, releasing energy. It covers the materials involved, such as uranium and plutonium, and the chain reaction process in nuclear reactors. The tutorial also describes how nuclear power stations control these reactions using fuel rods, moderators, and control rods to maintain a steady energy output. The energy generated is used to produce electricity through a heat exchanger and turbines.

What is nuclear fission?

• The fusion of two nuclei into one

• The splitting of a nucleus into two or more parts

• The absorption of a neutron by a nucleus

• The release of gamma rays from a nucleus

Which of the following is NOT a common fissionable material?

• Uranium-235

• Plutonium-239

• Thorium-232

• Uranium-233

What is the role of fission neutrons in a nuclear reaction?

• They stabilize the nucleus

• They convert into gamma rays

• They cause further fission reactions

• They absorb excess energy

What is a chain reaction in the context of nuclear fission?

• The cooling of the reactor core

• The absorption of neutrons by control rods

• A series of fission reactions caused by released neutrons

• A single fission event

What is the purpose of control rods in a nuclear reactor?

• To act as a coolant

• To increase the speed of the reaction

• To absorb excess neutrons and control the reaction rate

• To generate steam for turbines

Which material is commonly used as a moderator in nuclear reactors?

• Graphite

• Lead

• Copper

• Aluminum

How is electricity generated in a nuclear power station?

• By burning coal

• By using wind turbines

• By using solar panels

• By driving turbines with steam produced from heated water