Arbeid, Energie en Drywing Flashcards

1
Q

Arbeid

A

W = F * verplasing * cos(theta)

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2
Q

Arbeid-energiestelling

A

Die netto arbeid verrig op ‘n voorwerp is gelyk aan die verandering in kinetiese energie van die voorwerp

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3
Q

Konserwatiewe krag

A

‘n Krag waarvan die netto arbeid verrig deur die krag om ‘n voorwerp langs ‘n geslote pad te beweeg, wat begin en eindig by dieselfde punt, nul is.

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4
Q

Nie-konserwatiewe krag

A

‘n Krag waarvan die netto arbeid verrig deur die krag om ‘n voorwerp langs ‘n geslote pad te beweeg, wat begin en eindig by dieselfde punt, nie nul is nie.

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5
Q

Behoud van meganiese energie

A

Die totale meganiese energie in ‘n geslote sisteem bly konstant.

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6
Q

Arbeid-energiestelling in die algemene vorm

A

Die arbeid verrig deur nie-konserwatiewe kragte wat op ‘n voorwerp inwerk is gelyk aan die voorwerp se verandering in meganiese energie

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7
Q

Drywing

A

Die tempo waarteen arbeid verrig word of energie verbruik word.

P = W/verandering in tyd

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