Tuesday 16 March 2021

Resources for Nuclear Debate - link to all the blog posts on this topic

The Big Lie About Nuclear Waste

Problems with Solar in North Africa

How much land does it take to Power the World?

How much Electricity do we need?

Gravitricity

Flywheel - Mechanical Battery

Hydropower

Why Renewables Can't Save the Planet

Supercapacitors

Geothermal Energy Problems

Small Modular Nuclear Reactors

Perscovits Solar Cells

India's Solar Canals

Thursday 4 March 2021

Term 1 Week 5 2021

Homework:

Activity 11A, p.176 Waves & Photons (last week)
Activity 11B, p.179 Photoelectric Effect (last week)
Activity 11C, p.183 Atomic Line Spectra
Activity 11D, p.188-189 Bohr Model of Hydrogen Atom
Activity 12A, p.194 E = mc^2

When is now Relativity and Neurology

Nuclear Fission

Nuclear Fission; splitting the atom for beginners

Nuclear Physics: Crash Course Physics #45

Nuclear Chemistry: Crash Course Chemistry #38

Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry #39

Nuclear Fission

The breaking up of a larger nucleus into smaller nuclei
The decrease in mass per nucleon, matches the increase in binding energu per nucleon
This binding energy per nucleon is a negative energy and represents energy that is lost (radiated away) during the reaction.
Binding energy per nucleon also represents the energy that would need to be added to liberate a nucleon from the nucleus

Nuclear Fission

Fission & Fusion

Nuclear Fusion

The joining of smaller nuclei into a larger nucleus
The decrease in mass per nucleon, matches the increase in binding energu per nucleon
This binding energy per nucleon is a negative energy and represents energy that is lost (radiated away) during the reaction.
Binding energy per nucleon also represents the energy that would need to be added to liberate a nucleon from the nucleus

Nuclear Fusion

Fusion Energy

Binding Energy per Nucleon

Nuclear Reaction E = mc²

Binding Energy per Nucleon

Binding Energy per Nucleon is a negative energy or a debt of energy. This is the amount of energy it would take to liberate a nucleon from the nucleus. This energy was originally radiated off when the nucleus formed.

The energy radiated off, the Binding energy, is lost energy and comes from mass that is lost by the nucleons. Mass per Nucleon shows what is left over once a bound nucleon has radiated away some of its mass.

Mass per Nucleon

Fission:The breaking up of a larger nucleus into smaller daughter nuclei. Anything above Iron will radiate off energy.

Fusion:
The joining of smaller nuclei into a larger nucleus. Anything below Iron will radiate off energy.

Fission & Fusion