Praca, moc, energia klasa 7
Quiz
•
Physics
•
7th Grade
•
Medium
Standards-aligned
Jolanta Oleksiak
Used 414+ times
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31 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pracę obliczamy ze wzoru:
W= F*s
W= F/s
W= s/F
żadna nie jest poprawna
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jednostką pracy jest:
wolt
amper
dżul
niuton
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Moc obliczmy ze wzoru
P = t/W
P = W*t
P = W/t*s
P = W/t
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Odkształcone ciało powracające do pierwotnej postaci wykonuje pracę dzięki:
energii potencjalnej grawitacji
energii potencjalnej sprężystości
energii mechanicznej
energii kinetycznej
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energia mechaniczna to suma energii potencjalnej i :
energii mechanicznej
energii sprężystości
energii grawitacji
energii kinetycznej
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jednostką mocy jest:
dżul
wat
niuton
amper
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jeśli pod wypływem siły 1N ciało przesunęło się zgodnie ze zwrotem działającej siły o 1m, to została wykonana praca:
2J
1J
3J
4J
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