Rasmda keltirilgan kuchlarning qaysilari jismni faqat ilgarilanma harakatga keltiradi? (O–massalar markazi.)

7-sinf uchun Aylanish effektlari

Quiz
•
Physics
•
7th Grade
•
Medium
Azamat Yuldoshev
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1, 4, 5
1, 3, 5
4, 5
1, 2
2, 3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1 m uzunlikdagi bir jinsli sterjenning og‘irlik markazini 20 cm surish uchun uning bir uchidan necha cm uzunlikdagi qismini kesib olish kerak?
10
20
30
40
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kuch 2 marta kamaytirilib, yelka 4 marta orttirilsa, kuch momenti qanday o‘zgaradi?
4 marta kamayadi.
2 marta kamayadi.
4 marta ortadi.
2 marta ortadi.
4.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Prujina uzunligi o‘zgarishining unga qo‘yilgan kuchga bog‘lanish grafigi rasmda keltirilgan. Prujinaning bikrligini aniqlang (N/m).
10
100
30
1000
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Berilgan sim bo‘lagining bikrligi 𝑘 ga teng. Shu sim bo‘lagi yarmining bikrligi nimaga teng?
k
k/2
2k
Javob yo'q
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Agar yerda yotgan sterjenning bir uchidan 12 N kuch bilan ko‘tarish mumkin bo‘lsa, sterjenning massasi qanday (kg)?
0.6
1.2
2.4
4.8
7.
MULTIPLE CHOICE QUESTION
2 mins • 3 pts
800 g massali yuk ta’sirida prujina 2 cm cho‘zildi. Prujinaning bikrligi qanday (N/m)?
4
40
400
4000
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