Rad, energija i snaga

Quiz
•
Physics
•
9th Grade
•
Medium
Lucija Matkovic
Used 288+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tijelo A mase 2 kg nalazi se na visini od 4 m, a tijelo B mase 4 kg na 2m. Kako se odnose njihove gravitacijske potencijalne energije?
Ne može se odrediti
Tijelo A ima veću energiju
Njihove energije su jednake
Tijelo B ima veću energiju
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3 kuglice jednakih masa nalaze se na različitim visinama u odnosu na tlo. Koja ima najmanju gravitacijsku potencijalnu energiju?
Kuglica A
Kuglica B
Kuglica C
sve imaju istu gravitacijsku potencijalnu energiju
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Položaj u kojem skateboarder ima najveću gravitacijsku potencijalnu energiju je:
Položaj 1
Položaj 2
Položaj 3
Položaj 4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fizička veličina o kojoj ovisi kinetička energija kamiona koji se kreće autocestom naziva se:
Visina na kojoj se nalazi
Duljina
Brzina
Obujam
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Što je rad?
Rad je umnožak sile i puta, a sila je okomita na put
Rad je umnožak sile i put duž kojeg djeluje ta sila
Rad je jednak promjeni energije
Rad je djelovanje sile na površinu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Snagu definiramo kao:
obavljeni rad u nekom vremenu
djelovanje sile duž puta
promjenu energije
djelovanje sile na površinu
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Znak za fizikalnu velčinu rada:
W
G
V
P
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