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fizique

def

TermDefinition
inertia proprietatea corpului de a-si mentine starea de repaus sau de miscare rectilinie uniforma in absenta actiunilor exterioare
principiul I orice corp isi mentine starea de repaus sau mru atat timp cat asupra sa nu actioneaza alte corpuri.
forta este marimea fizica care masoara interactiunea corpurilor.
principiul II vectorul forta este proportional/egal cu produsul dintre masa si vectorul acceleratie.
principiul III al actiunii reciproce daca un corp A actioneaza asupra unui corp B cu o forta numita actiune si corpul B actioneaza asupra corpului A cu o forta care are aceeasi directie, modul, dar sens opus, numita reactiune.
greutatea greutatea unui corp este forta exercitata de Pamant asupra unui corp
tensiunea in fir este forta care apare intr un fir intins si reprezinta reactiunea firului la forta de intindere exercitata asupra lui.
forta elastica forta care apare intr-un corp elastic deformat, este proportionala cu valoarea deformarii si se opune deformarii.
masa este marimea fizica ce masoara inertia corpului
miscarea circulara uniforma micarea in care traiectoria este un cerc si viteza este constanta in modul
vectorul segmen de dreapta oriental
Created by: ioanaaa
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