"gather and analyse data to sasess the impact of Pauli's
suggestion of the neutrino on Fermi's work"
Basically, Fermi was studying Beta Decay. He noticed that Beta Decay always produced Beta Particles with different K.E. This violated the conservation laws. That's why he concluded that in Beta Decay not only electrons are emitted, but neutrinos are as well which have 0 mass but can possess K.E.
You have to make a judgement. Say something along the lines of "without Pauli's suggestion of the existence of the neutrino, Fermi may never have been able to explain beta decy. Therefore Paul's work had a highly beneficial impact on Fermi's."
"explain the basic principles of a fission
reactor"
-you've got fuel, moderator, control, coolant, shielding
-you get controlled chain reaction wherein one U-235 absorbs a neutron. The new U-236 splits into daughter atoms and releases more neutrons which are absorbed by other U-235.
-The control rods absorb neutrons so that you can control the number of neutrons being absorbed by U-235 nucleus. This in turn controls rate of fission.
-Moderators slow down the neutrons so they can be more readily absorbed by U-235 nucleus.
-When the U-236 splits, you get products with a total mass less than the initial mass of the U-236. Therefore mass has been lost. E= mc^2. The lost mass = energy= heat.
-Coolant(usually water) takes away the heat-->steam--->steam turbine--->electrical energy
-You need shielding for obvious reasons.
There ya go, nuclear fission reactors in a nut shell.
