Scripetele

Interactive Video
•
Physics
•
7th Grade
•
Easy

MARIAN HERBIL
Used 2+ times
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Mecanismul simplu format dintr-un disc care se poate roti în jurul unui ax și care este prevăzut cu un canal prin care este trecut un cablu se numește:
pârghia
plan înclinat
scripete
2.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Scripetele mobil este folosit pentru a:
schimba convenabil sensul forței active
înjumătăți forța activă
dubla forța activă
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Cele două corpuri din imagine sunt în echilibru. Se consideră g=10N/kg. Masa corpului 1 este:
25 N
2,5 N
25 kg
2,5 kg
4.
MULTIPLE CHOICE QUESTION
45 sec • 4 pts
Sistemul din imagine este în echilibru. Știind că R=240 N, determinați valoarea forței active F.
F=240 N
F=60 N
F=120 N
F=480 N
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