F-10 Curriculum (V8)
F-10 Curriculum (V9)
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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.
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!
Electrons around atoms can absorb and emit photons of particular colours of light – see three different atomic models explain what's going on.