Difference between revisions of "Absorb (physics)"
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===About Absorption=== | ===About Absorption=== | ||
− | [[Absorb|Absorbtion]] involves the transfer of [[energy]] from the [[Electromagnetic Wave|electromagnetic wave]] to the material. | + | *[[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 [[absorption]] of light, sound, or [[radiation]]. | + | *It can occur in various forms, such as the [[Absorb (Physics)|absorption]] of [[light]], [[sound]], or [[radiation]]. |
− | [[Material]]s have specific [[ | + | *[[Material]]s have specific [[Absorption Spectra|absoption spectra]] indicating which [[wavelength]]s they [[Absorb (Physics)|absorb]]. |
===Examples=== | ===Examples=== | ||
− | Solar panels [[Absorb (Physics)|absorb]] sunlight to convert it into electricity. | + | *Solar panels [[Absorb (Physics)|absorb]] sunlight to convert it into [[electricity]]. |
− | Dark-[[colour]]ed [[object]]s [[Absorb (Physics)|absorb]] more [[Visible Light|visible light]] and therefore [[heat]] up faster than light-[[colour]]ed [[object]]s. | + | *Dark-[[colour]]ed [[object]]s [[Absorb (Physics)|absorb]] more [[Visible Light|visible light]] and therefore [[heat]] up faster than light-[[colour]]ed [[object]]s. |
Revision as of 16:51, 17 May 2024
Contents
Key Stage 3
Meaning
Absorption is when the energy being transferred by a wave is taken into an energy store of a material.
Key Stage 4
Meaning
Absorption is when the energy being transmitted by a wave is taken into an energy store of a material.
About Absorption
- When a wave is absorbed the wave ceases to exist and the energy being transmitted by that wave increases an energy store of the absorbing material.
- Absorption happens at the interface between two media.
- Black objects absorb light increasing their thermal energy store.
- Soft objects absorb sound increasing their thermal energy store.
- The colour of an object is caused by some frequencies of light being absorbed while others are reflected.
References
AQA
- Absorption of waves, pages 189-90, 195, GCSE Physics, Hodder, AQA
- Absorption, pages 27-29, 179, 206-207, GCSE Physics; Third Edition, Oxford University Press, AQA
- Absorption; lines, page 111, GCSE Physics; Student Book, Collins, AQA
Edexcel
- Absorbed waves, page 56, GCSE Physics, Pearson Edexcel
- Absorption of radiation, page 320, GCSE Combined Science, Pearson Edexcel
- Absorption of radiation, page 38, GCSE Physics, Pearson Edexcel
- Absorption of waves, pages 98, 128, 141-144, GCSE Physics, CGP, Edexcel
- Absorption of waves; colour of objects, page 137, GCSE Physics, CGP, Edexcel
- Absorption spectra, pages 191, 192, GCSE Physics, CGP, Edexcel
- Absorption spectrum, page 359, GCSE Combined Science, Pearson Edexcel
- Absorption spectrum, page 95, GCSE Physics, Pearson Edexcel
- Absorption, pages 34, 40, GCSE Physics; The Revision Guide, CGP, Edexcel
OCR
Key Stage 5
Meaning
Absorbtion is the process where matter takes in photons, particles, or energy.
About Absorption
- Absorbtion involves the transfer of energy from the electromagnetic wave to the material.
- It can occur in various forms, such as the absorption of light, sound, or radiation.
- Materials have specific absoption spectra indicating which wavelengths they absorb.
Examples
- Solar panels absorb sunlight to convert it into electricity.
- Dark-coloured objects absorb more visible light and therefore heat up faster than light-coloured objects.