Partikkel




Partiklar er særs ofte representert som prikkar. Denne figuren kan representere rørsla til atoma i ein gass, folk i ei folkemengd eller stjerner på natthimmelen.


Ein partikkel er ein liten lekam, som ein støvpartikkel eller liknande. Ein partikkel kan skildrast ved hjelp av fysiske eigenskapar som volum og masse.[1][2] Noko som er i partikkelform kan kallast partikulær.


Det vert òg nytta om atom, molekyl og ladde og uladde elementærpartiklar.


Ofte vert ein lekam rekna som ein partikkel etter kva samanheng han vert nemnt i, så lenge storleiken til partikkelen er liten eller neglisjerbar, eller om dei geometriske eigenskapane og strukturen ikkje er relevant..[3] Til dømes kan sandkorn (~1 mm) på ei strand reknast som partiklar, men dei vil ikkje vere partiklar samanlikna med buckminsterfulleren (~1 nm).



Kjelder |




  • Denne artikkelen bygger på «Particle» frå Wikipedia på engelsk, den 13. april 2013.

    • Wikipedia på engelsk oppgav desse kjeldene:


  1. ↑
    «Particle». AMS Glossary. American Meteorological Society. 


  2. ↑
    «Particles». AMS Glossary. American Meteorological Society. 


  3. ↑
    «Particle». Dictionary.com. Henta 14. april 2013. 










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