
9-sinf 4 mavzu
Authored by Bunyod Saydaliyev
Physics
9th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elastik prujinaga osilgan yuk garmonik tebranadi. Shu yuk xuddi shunday, lekin 16 marta uzun prujinaga osilsa, tebranish davri qanday o‘zgaradi?
2 marta kamayadi
2 marta ortadi
uzgarmaydi
4 marta ortadi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Agar tebranish davri T bo‘lgan prujinali mayatnikka osilgan yukning massasi n marta oshirilsa, uning tebranish davri qanday bo‘ladi?
n*T
n2*T
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Massasi 4 kg bo‘lgan yuk prujinaga osilgan va T davr bilan garmonik tebranmokda. Davr T/2 gacha qisqarishi uchun yukning necha kilogrammini olib tashlash kerak?
2
3
1
3.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prujinaga 100 g yuk osilgan va u minutiga 120 marta tebranadi. Prujinaning bikrligini aniqlang (N/m).
12
120
16
40
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bikrligi 100 N/m bo‘lgan prujinaga qanday massali yuk osilganda, uning tebranish chastotasi 5 Hz bo‘ladi (g)?
200
25
100
50
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qanday sharoitda matematik mayatnikning tebranish davri cheksiz katta bo‘ladi?
bunday bo‘lishi mumkin emas
ekvatorda
qutbda
vaznsizlikda
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oyga yerdan olib chiqilgan matematik mayatnikning tebranish davri yerdagidek bo‘lishi uchun uning uzunligini qanday o‘zgartirish kerak. Oyda erkin tushish tezlanishi yerdagidan 6 marta kichik.
o‘zgartirish kerak emas
6 marta orttirish kerak
36 marta qisqartirish kerak
6 marta qisqartirish kerak
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