Fizika attestatsiya №9 – Info-Master.uz

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TOSHKENT 2022-MART ATTESTATSIYA da aynan tushgan testlar

Testni Toshev Anvar tayyorladi.

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Testda 76% va undan yuqori natija oling va sertifikatni yuklab oling.

1 / 40

45 kg massali bola 15 m/s tezlik bilan yurayotgan bòlsa, uning kinetik energiyasi (J) nimaga teng?

A) 5062

B) 7654

C) 7462

D) 38954

2 / 40

Agar jismning tezlik va tezlanish vektori istalgan paytda o’zaro to’g’ri burchak hosil qilsa, jism qanday harakatda bo’ladi?

A) tinch turadi

B) to’g’ri chiziqli tekis tezlanuvchan

C) aylana bo’ylab tekis

D) to’g’ri chiziqli tekis

3 / 40

50 sm li iрga bog‘langan sharcha minutiga 36 marta aylanmoqda. Uning aylanish chastotasini toping (Hz).

A) 1.67

B) 0.6

C) 3.6

D) 6

4 / 40

Jism 20 m balandlikdan 17,3 m/s tezlik bilan gorizontal otildi. 2 s dan so’ng jism ko’chish vektori yo’nalishi gorizont bilan qanday burchak hosil qiladi?

A) 90

B) 45

C) 30

D) 60

5 / 40

Radiusi 10cm bo’lgan suv tomchisi 10ta bir xil tomchiga ajratildi. Bunda sirt energiyasi qanday o’zgaradi? σ_suv=73mN/m

A) Kamayadi

B) Ortadi

C) Haroratga bog’liq

D) O’zgarmaydi

6 / 40

Rasmda ikkita ingichka va cheksiz uzun o`tkazgichlar tasvirlangan. I tok o`tayotgan o`tkazgichning A nuqtada hosil qilgan magnit maydon induksiyasi B ga teng bo`lsa, shu nuqtadagi natijaviy magnit maydon induksiyasi nimaga teng?

A) 1,73 B

B) 1,41 B

C) 0

D) 2 B

7 / 40

Massasi m bo‘lgan jism F=mυ² / R markazga intilma kuch ta’sirida radiusi R bo‘lgan aylana bo‘ylab doimiy v tezlik bilan aylanmoqda. Bu kuch jismning ikki marta aylanishida qanday ish bajaradi?

A) 4πmυ²

B) πmυ²

C) 0

D) 2πmυ²

8 / 40

Q nuqtaviy zaryaddan birinchi nuqta r, ikkinchi nuqta 2r masofada joylashgan. Bu ikki nuqtadagi elektr maydon kuchlanganliklarining nisbati qanday?

A) 4

B) 12

C) 32

D) 8

9 / 40

Rasmdagidek harakatlanayotgan jismni 20s dan keyingi koordinatasini toping.

A) X=106 m

B) X=96 m

C) X=136 m

D) X=126 m

10 / 40

Rasmdagi K mashina turgan joyni sanoq boshi va OX o‘qini mashinalarning harakat yo‘nalishida deb qabul qilib, K-mashina uchun koordinata tenglamasini yozing.

A) X=60t

B) X=20t

C) X=80t

D) X=40t

11 / 40

Yutish koeffitsiyenti 0,2 ga teng bo‘lgan sirtga 900 W/m² intensivlikli yorug‘lik nuri tushmoqda. Yorug‘lik bosimini aniqlang (µPa)?

A) 5,4

B) 5

C) 3,6

D) 4

12 / 40

Og‘irligi P bo‘lgan blokka A va B jismlar osilgan. Richak muvozanatda bo‘lishi uchun qancha F kuch qo‘yish kerak? Richak vaznsiz.

A) 6P

B) 7,5p

C) 10p

D) 5p

13 / 40

Magnit induksiya chiziqlari tik pastga yo‘nalgan. Bu maydonga perpendikulyar yo‘nalishda elektron uchib kirdi. Uning trayektoriyasi qanday?

A) to'g'ri chiziq

B) aylana

C) ellips

D) parabola

14 / 40

Elektronni A nuqdatan B nuqtaga ko‘chirilganda bajarilgan ish A₁, A nuqtadan C nuqtaga ko‘chirishda bajarilgan ish A₂ ga teng. A₁ va A₂ ishlarning modullarini taqqoslang?

A) A1>A2

B) A1<A2

C) A1=2A2

D) A1=A2

15 / 40

Jism o‘zgarmas tezlanish bilan harakat qilib, ketma-ket 2 sekund vaqt oralig‘ida 26m va 18m masofalarni bosib o‘tdi. Jism boshlang‘ich tezligini toping (m/s)?

A) 26

B) 18

C) 90

D) 30

16 / 40

Ipga osilgan musbat zaryadlangan sharcha vertikaldan 45^o ga og‘ib turib qoldi. Agar musbat zaryadli sharcha massasi 160 mg bo‘lsa, sharchalar zaryad miqdori qancha (nC)? d=3cm

A) 16

B) 12

C) 4

D) 8

17 / 40

Suyuqlik radiusi 11 mm bo‘lgan naychada 0,5 mm ko‘tarildi. Suyuqlik zichligini toping (kg/m³). σ=22 mN/m

A) 1000

B) 800

C) 1000

D) 1600

18 / 40

Agar F=20 cm bo‘lsa, S buyumning tasviri S¹ bo‘lsa, x*y ni toping (m²)?

A) 0,044

B) 0,8

C) 0,44

D) 0,08

19 / 40

Mikroskopda qanday tasvir hosil bo‘ladi?

A) Mikroskopda mavhum, teskari, kattalashgan tasvir hosil bo‘ladi

B) Mikroskopda mavhum, to'g'ri, kattalashgan tasvir hosil bo‘ladi

C) Mikroskopda mavhum, teskari, kichiklashgantasvir hosil bo‘ladi

D) Mikroskopda aniq, teskari, kattalashgan tasvir hosil bo‘ladi

20 / 40

X jism suyuqliklar solingan idishlarga tushurilganda, idishlardagi suyuqliklar balandliklari h bo‘lib muvozanatda qolmoqda. Bunga asosan, K, L, M nuqtalardagi suyuqlikning bosimlari P_K, P_L, P_M orasidagi munosabat qanday?

A) PL>PK>PM

B) PL<PK<PM

C) PL>PK<PM

D) PL<PK>PM

21 / 40

K va L nuqtalar orasidagi potensiallar farqi 40V. 2µF sig‘imli kondensatordagi kuchlanishni toping (V).

A) 32 V

B) 30 V

C) 28 V

D) 24 V

22 / 40

Tushish burchagi kamaytirilsa, sinish burchagi qanday o‘zgaradi?

A) kamayadi

B) O‘zgarmaydi

C) ortadi

D) TJY

23 / 40

Vodorod atomidagi elektron 7-sathdan 3-sathga o‘tganda E energiyali foton nurlaydi. Elektron 7-sathdan 2-sathga o‘tganda qanday energiyali foton nurlaydi?

A) 81E/32

B) E/32

C) E

D) 9E/16

24 / 40

K va N nuqtalar orasidagi potensiallar farqi 25V bo‘lsa, L va N nuqtalar orasidagi kuchlanish qancha (V)?

A) Ux=φ(LN)=5V

B) Ux=(φLN)=40V

C) Ux=φ(LN)=50V

D) Ux=φ(LN)=10V

25 / 40

Induksiyasi 1T, yuzasi 250cm², o‘ramlar soni 100 ta bo‘lgan simli ramka magnit maydonda 60^o burchak ostida joylashgan. Unga 500mN·m aylantiruvchi moment ta’sir qilmoqda. Ramkadagi tok kuchi (A) qanday?

A) I=0,4A

B) I=0,8A

C) I=0,6A

D) I=0,10A

26 / 40

R₁=200Ω bo’lsa, R₃ ni toping (Ω)?

A) R3=300Ω

B) R3=30Ω

C) R3=200Ω

D) R3=100Ω

27 / 40

I=5A, ampermetr 4A ni ko‘rsatmoqda. Rezistor qarshiligi ampermetr qarshiligidan necha marta katta?

A) 2 marta katta

B) 6 marta katta

C) 8 marta katta

D) 4 marta katta

28 / 40

Elektronni qaysi nuqtaga joylashtirganda, u eng katta energiyaga ega bo‘ladi?

A) 1-nuqtaga

B) 2-nuqtaga

C) 3-nuqtaga

D) TJY

29 / 40

6Ω li 3 ta rezistor bor. Ulardan 4Ω li qarshilik hosil qilish uchun ularni qanday ulash kerak?

A) 2 tasi ketma-ket, 3-si parallel

B) 1 tasi ketma-ket, 2-si parallel

C) 2 tasi ketma-ket, 1-si parallel

D) 2 tasi ketma-ket, 1-si parallel

30 / 40

Yakorning o‘ramlar soni N₁=200 dan N₂=1000 taga ortdi. Agar EYuK Ɛ₁=60V dan Ɛ₂=120V gacha ortsa, magnit maydon o‘zgarish tezligi qanday o‘zgaradi?

A) 2,5 marta ortadi

B) 5 marta kamayadi

C) 5 marta ortadi

D) 2,5 marta kamayadi

31 / 40

K va L nuqtalar orasidagi umumiy sig‘imni toping.

A) 915

B) 9C

C) 12C

D) 6C

32 / 40

Quyidagi hodisalardan qay birida modda atomlari (molekulalari) orasida potensial energiya mavjudligi ko‘rinadi? 1) muz erishi 2) suv isishi 3) suv bug'lanishi

A) faqat 1

B) 1;2;3

C) 1;3

D) 1;2

33 / 40

Qaysi grafikda izotermik kengayotgan ideal gaz ifodalangan?

A) 3-grafik

B) 2-grafik

C) 1-grafik

D) 4-grafik

34 / 40

Har biri 10nC dan bo‘lgan 2 ta shar ingichka sim bilan tutashtirilsa, kichkina sharning zaryadi qanday?

A) 8nC

B) 6nC

C) 16nC

D) 4nC

35 / 40

Gaz adiabatik ravishda kengayganda harorati qanday o‘zgaradi?

A) Kamayadi

B) ortadi

C) o'zgarmaydi

D) tjy

36 / 40

Og‘irligi 20N bo‘lgan richakka 2 ta yuk osilgan. P₁=10N bo‘lsa, P₂ necha N bo‘ladi?

A) P2=20 N

B) P2=30 N

C) P2=40 N

D) P2=50 N

37 / 40

Gorizontal tekislikda tinch yotgan jismga nechta kuch ta’sir qiladi?

A) 2

B) 3

C) 4

D) 1

38 / 40

c=a+b bo‘lsa, c vektor modulini aniqlang.

A) |c|=29

B) |c|=25

C) |c|=5

D) |c|=√29

39 / 40

ν=3 mol ideal gazning hajmi 200 kPa o‘zgarmas bosim ostida 2 m³ dan 7 m³ gacha o‘zgardi. Ichki energiya o‘zgarishini aniqlang(J). Gaz ikki atomli

A) 6

B) 5

C) 2,5

D) 3

40 / 40

Ideal gaz TV³=const qonun bo‘yicha hajmi 2 marta ortsa, bosim qanday o‘zgaradi?

A) 2 marta kamayadi

B) 8 marta kamayadi

C) 4 marta kamayadi

D) 16 marta kamayadi

Baholash mezoni

- 75 foiz va undan yuqori ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tdi, oliy malaka toifasi (bosh o’qituvchi lavozimi) saqlansin”;

- 75 foizdan past ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tmadi, birinchi malaka toifasi (yetakchi o’qituvchi lavozimi)ga tushirilsin”;

- 75 foiz va undan yuqori ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tdi, oliy malaka toifasi (bosh o’qituvchi lavozimi) berilsin”;

- 74 foizdan 65 foizgacha ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tdi, birinchi malaka toifasi (yetakchi o’qituvchi lavozimi) saqlansin”;

- 65 foizdan kam ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tmadi, ikkinchi malaka toifasi (katta o’qituvchi lavozimi)ga tushirilsin”

- 64 foizdan 60 foizgacha ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tdi, ikkinchi malaka toifasi (katta o’qituvchi lavozimi) saqlansin”;

- 60 foizdan kam ko’rsatgichga ega bo’lsa - “Attestatsiyadan o’tmadi, mutaxassis (oliy yoki o’rta maxsus, kasb-hunar ma'lumotli o’qituvchi) lavozimiga tushirilsin”

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“ Fizika attestatsiya №9” bo‘yicha fikrlar (7)

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