20,345
edits
Changes
→Key Stage 5
*[[Absorb (Physics)|Absorbtion]] involves the transfer of [[energy]] from the [[Electromagnetic Wave|electromagnetic wave]] to the material.
*It can occur in various forms, such as the [[Absorb (Physics)|absorption]] of [[light]], [[sound]], or other [[radiation]].
*[[Material]]s have specific [[Absorption Spectra|absoption spectra]] indicating which [[wavelength]]s they [[Absorb (Physics)|absorb]].
*[[Absorb|Absorbtion]] of [[Visible Light|light]] occurs when the [[energy]] of the [[photon]] is transferred to an [[electron]] in the absorbing material.
*In [[gas]]es, [[absorption]] lines in the spectrum are due to transitions between [[energy]] levels in [[atom]]s or [[molecule]]s.
*In [[solid]]s, [[absorption]] can be due to phonons or electronic transitions.
*[[Absorb|Absorbtion]] coefficients quantify how much [[Visible Light|light]] is absorbed per unit distance in a material.
*Applications include [[absorption]] spectroscopy, which is used to determine the composition of substances.
===Examples===