Why does lowering the control rods in a nuclear reactor reduce the amount of energy released each second from the nuclear fuel?
The boron control rods absorb slow-moving neutrons (thermal neutrons), which means that there are less available neutrons in the reactor. Since nuclear fission requires a collison between a neutron and a uranium nucleus, less neutrons means less fission reactions taking place. Hence, the rate of energy production decreases.
LC
Related Physics GCSE answers
All answers ▸Define the Specific Heat Capacity of a material. What is its unit?
A rollercoaster carriage of mass 100kg has 45kJ of Kinetic Energy at the lowest point of its ride. Ignoring air resistance and friction between the wheels and the tracks, what is the maximum height above this point it could reach? [Take g as 10m/s/s)
How do I remember all the formulas I will need for questions.
A mass of 2.5kg is raised by a height of 8m in 36 seconds using an electronic motor. Calculate the power of the motor.