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12

Fysik og sådan

QuestionAnswer
Hvad består en atomkerne af? Protoner og neutroner.
Hvor mange kvarker er der? 16 kvarker.
Hvad forstås ved nukleontallet? betegner antallet af nukleoner dvs. protoner + neutroner.
Hvad er enheden for elementarladningen? Coulomb.
Hvad hedder de kræfter protoner og neutroner påvirker hinanden med? Kernekræfter.
Hvad forstås ved lysets dualitet? Lys har både bølge-og partikelegenskaber.
Nævn en partikel egenskab for lys og en bølge egenskab. <frit>
Nævn formlen for beregning af energien af et foton med frekvens. E_foton=h⋅f
Beskriv kort et foton. Et foton har ingen masse. Man kan beskrive det som en energiklump, som består af såkaldte energikvanter.
Hvilken hastighed har fotoner i et vakuum? V=lysets hastighed: 3,00*10^8 m/s