
OTM - Dinamika - Rad i Snaga
Quiz
•
Engineering
•
10th Grade
•
Hard
Ivica Gizdic
Used 5+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prema fizikalnoj definiciji, rad se obavlja kada:
Djelujete silom na tijelo, ali se tijelo ne pomiče.
Držite teško tijelo mirno na određenoj visini.
Sila djeluje u smjeru pomaka).
Razmišljate o problemu fizike.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formula za izračun rada u situaciji kada stalna sila djeluje u smjeru pomaka tijela glasi:
P = W / t
F = m * a
W = F * s
W = F / s
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mjerna jedinica za rad u fizici naziva se:
Vat (W)
Newton (N)
Metar (m)
Džul (J)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rad je negativan kada:
Sila i put imaju istu orijentaciju.
Tijelo miruje unatoč djelovanju sile.
Sila i put su suprotne orijentacije.
Tijelo se giba jednoliko.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sila trenja je primjer sile kod koje rad ovisi o ukupno prijeđenom putu. Takve sile nazivamo:
Konzervativne sile
Gravitacijske sile
Elastične sile
Disipativne sile
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rad pri djelovanju promjenjive sile na tijelo na određenom putu može se odrediti iz F-s dijagrama kao:
Nagib krivulje.
Volumen ispod krivulje.
Površina ispod krivulje.
Točka presjeka s osi sile.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fizička veličina koja iskazuje koliko se brzo obavlja rad naziva se:
Energija
Sila
Snaga
Moment
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