Boris Johnson visits Hartlepool Nuclear power station

The video introduces Lee, a farm manager, and discusses a reaction process occurring under a window. It explains the role of a graphite box and the proximity of uranium in the reaction. The control board's function in managing the reaction and the concept of critical mass are also covered.

Who is Lee in the context of the video?

• A technician fixing equipment

• A scientist conducting experiments

• A farm manager

• A student learning about reactions

What is the role of proximity in the reaction process?

• It accelerates the reaction

• It prevents the reaction from occurring

• It has no effect on the reaction

• It initiates the reaction

What is the function of the Control Board in the reaction process?

• To control the reaction

• To measure the pressure

• To monitor the temperature

• To provide power to the system

What is critical mass in the context of nuclear reactions?

• The total energy produced by a reaction

• The minimum amount of uranium needed to sustain a reaction

• The maximum temperature a reaction can reach

• The average speed of neutrons in a reaction

What happens when there is enough Uranium 235 in one place?

• The reaction stops

• The reaction cools down

• The reaction becomes unstable

• The reaction sustains itself