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clasa a 10-a

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Cum se numește corpul ale cărui dimensiuni spațiale pot fi neglijate in comparație cu distanța parcursă sau cu distanțele pană la alte corpuri?   Punctul material  
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Ansamblu pozițiilor ocupate succesiv de mobil constituie o linie numită...   Traiectorie  
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Cine a descoperit principiul inerției, a stabilit caracterul relativ al mișcării mecanice, a formulat principiul clasic al relativității și legea compunerii vitezelor?   Galileo Galilei  
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Ce este mișcarea circulară uniformă?   O mișcare a punctului material pe un cerc.  
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Numărul de rotații complete efectuate de punctul material în unitate de timp.   Frecvența  
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Unghiul la centru descris de raza vectorului în unitate de timp.   Viteza unghiulară  
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Variația vitezei punctului material in unitate de timp.   Accelerația normală  
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