Nuclear fission | Physics | Khan Academy

During a nuclear fission reaction, a fissile nucleus absorbs a neutron and splits into two smaller nuclei. One or more free neutrons are also released. If enough fissile nuclei are located close enough together, the neutrons released from one fission can induce further fissions, resulting in a chain reaction. Nuclear weapons utilize fast, uncontrolled chain reactions to produce an explosion. Nuclear reactors utilize slower, controlled chain reactions to generate electricity. The release of energy during fission relates to the difference in total mass of the reactants and products by E=mc^2.

Sections:
00:00 - Intro
00:22 - What is nuclear fission?
03:50 - Fissile and non-fissile nuclei
05:34 - Fission chain reaction
06:23 - Atomic (nuclear) bombs
07:23 - Nuclear reactors

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[skywalker]

So happy that you guys make videos covering this concept! There's a lot of fear around nuclear and I personally feel that it may be the best alternative to fossil fuels. Replacing fossil fuel with nuclear coupled with renewable energy sources ( solar, wind, and hydro) should be humanity's future :)

[Goulal_]

What a coincidence
Today nuclear hazards and health risks was taught in my AECC 2
Thank you sir

[KelsieJG__they-them]

I also used to think the water vapor coming out of the cooling towers was dangerous smoke 😅