F-10 Curriculum (V8)
F-10 Curriculum (V9)
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Electrons around atoms can absorb and emit photons of particular colours of light – see three different atomic models explain what's going on.
When electrons in your retina absorb photons of light they don't emit light, they cause a molecule to change shape - and that lets you see colour!
This 6 minute video segment from Catalyst is an excellent introduction to the science behind photovoltaics. A useful comparison of the efficiency of energy conversion. Discussion of other issues considered in producing devices to use renewable energy to make electricity.