Fizika attestatsiya №6

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OMAD YOR BO'LSIN!

Fizika fanidan attestatsiya savollari №6

DIQQAT! Endi siz o'z bilmingizni sinab ko'rish bilan birga  sertifikatga ham ega bo'lishingiz mumkin.

Sertifikat olish uchun barcha ma'lumotlarni to'g'ri kriting! 

e-mail manzilini to'g'ri kriting, barcha ma'lumotlar sizga yuboriladi.
Testda 76% va undan yuqori natija oling va sertifikatni yuklab oling.

1 / 40

Qiya tekislikning qiyaligi 0,6 ga teng. shu qiya tekislik yordamida 10 kg massali yukni qanday kuch (N) bilan qiya tekislik bilan yuqoriga tekis ko’tarish mumkin? Ishqalanish kuchini hisobga olmang? g=10m/s²

2 / 40

Yer sirtidan cheksiz uzoqlikda m massali jismga yerga tomon 4 km/s tezlik berilsa u yerga qanday tezlik (km/s) bilan uriladi? Yer uchun birinchi kosmik tezlik 8 km/s ga teng.

3 / 40

Massasi 2 tonna bo’lgan avtomabil qanday tezlik (m/s) bilan harakatlanganda qavariq ko’prikning eng yuqori nuqtasida vaznsiz holatda bo’ladi? Ko’prikning egrilik radiusi 40 m ga teng. g=10m/s²

4 / 40

+q hamda +2q nuqtaviy zaryadlar bir biridan 2r masofada turibdi. Ularning o`rtasida joylashgan A nuqtadagi potensial 3 V ga teng. A nuqtadan 2r masofaga Q nuqtaviy zaryad joylashtirilganda esa bu nuqtadagi potensial -3 V ni tashkil etdi. Q zaryadni toping.

5 / 40

Induktivligi 0,2 Genri bo’lgan solenoidning chulg’amidan 10 A tok o’tmoqda. Solenoid magnit maydonining energiyasini aniqlang? (J)

6 / 40

Bir idishda 2 mol geliy (μ=4 g/mol) va 3 mol kislorod (μ=32 g/mol) bor. Aralashmaning izobarik jarayon uchun solishtirma issiqlik sig`imi (J/K·kg) qanchaga teng? Geliy va kislorod mos ravishda bir atomli va ikki atomli gazlar.

7 / 40

Nur optik zichligi zichligi 2 ga teng bo’lgan muhitdan optik Zichligi √3 ga teng bo’lgan muhitga tushmoqda. Bu holatda to’la ichki qaytishning chegaraviy burchagini toping?

8 / 40

Massasi 5 kg va tezligi 20 m/s bo’lgan jismning kinetic energiyasini (J) da toping?

9 / 40

Massasi 70 kg bo’lgan odam qo’zg’almas va qo’zg’aluvchan blok yordamida qanday massali (kg) yukni o’zgarmas tezlik bilan ko’tara oladi? Sistemaning foydali ish koeffitsenti 0,6 ga teng.

10 / 40

4 10⁶ m/s tezlik bilan bir jinsli magnit maydonga induksiya chiziqlariga nisbatan 30° burchak ostida uchib kirgan elektronga ta’sir etuvchi lorens kuchini (10-14 N) toping? maydonning magnit induksiyasi 0,2 Tesla.

11 / 40

O’zaro 60° burchak ostida joylashgan ikkita kuchning teng. ta’sir etuvchisini (N) toping? F1=F2= 20√3 N

12 / 40

Tinch holatdan tekis tezlanuvchan harakatni boshlagan moddiy nuqta 10 s da 100 m/s tezlikka erishgan bo’lsa, uning 10- sekundagi bosib o’tgan masofasini toping? (m)

13 / 40

Kichik bir sayyoraning radiusi 300 km zichligi esa 4 gr/sm³. Bu sayyoradan 20 m/s tezlik bilan otilgan toshning maksimal ko’tarilish balandligini (m) toping? π=3

14 / 40

Suv tubida 1,33 m chuqurlikda yotgan buyum tepadan qaralganda qanday chuqurlida ko’rinadi? n=1,33.

15 / 40

Boshlang’ich tezliksiz 4 m/s² tezlanish bilan tekis tezlanuvchan harakatlanishni boshlagan nexia avtomashinasining 4- va 3- sekundlargi bosib o’tgan yo’llar nisbatini toping?

16 / 40

Yuzalari 30 sm² va 330 sm² bo’lgan gidravlik press kuchdan necha marta yutuq beradi ? Ishqalanish yo’q.

17 / 40

Hajmi 1 dm³ bo’lgan temir bo’lagi suvga tushlandi. Temirga ta’sir etayotgan Arximed kuchini (N) toping? Suvning zichligi 1000 kg/m³ ga teng. g=10 m/s².

18 / 40

Suv bilan limmo lim to’lgan idishga 1 kg massali muz tashlandi. Muz siqib chiqargan suvning hajmini (l) da toping? muz va suvning zichliklari mos ravishda 1 va 0,9 g/sm³ ga teng deb hisoblansin.

19 / 40

Agar R₁= R₂= R₃=8 (Ω) bo’lsa, zanjirning umumiy qarshiligini toping? (Ω)

20 / 40

Gorizontga burchak ostida 30 m/s tezlik bilan otilgan jismning 25 m balandlikdagi tezligini (m/s) toping?

21 / 40

Yer sirtidan qanday balandlikda erkin tushish tezlanishi yer sirtidagi qiymatiga nisbatan 49 marta kichik bo’ladi? Yerning radiusi R.

22 / 40

Bosimi 60 kPa va hajmi 1 m³ bo’lgan gaz izotermik ravishda 4 m³ gacha kengaydi. Gazning keyigi bosimini (kPa) da toping?

23 / 40

Agar shaxta tubida barometr 85 sm sim.ust.ni, yer sirtida 78 sm sim.ust.ni ko’rsatsa shaxtaning chuqurligini aniqlang. (m)

24 / 40

Ichki energiyasi 120 kJ bo’lgan geliy gazi 400 l hajmli idishda turubdi. Idishdagi bosimni aniqlang? (kPa) geliy bir atomli gaz.

25 / 40

Ideal gaz birinchi holatdan ikkinchi holatga o’tganda hajmi 8 m³ ga o’zgardi. Agar T₁=1200 K, T₂= 400 K bo’lsa, gazning dastlabki hajmi (m³) qanday?

26 / 40

Radiusi 4 m bo’lgan aylana trayektoriya bo'ylab tekis harakatlanayotgan jismning chiziqli tezligi 4 m/s ga teng. Jismning markazga intilma tezlanishini (m/s2 ) toping.

27 / 40

OX o’qi bo’ylab jism tebranishi x=8sin(3t+π/3) tenglama bilan ifodalanadi. t=4 s paytdagi tebranish fazasi aniqlansin?

28 / 40

”Havo yoki gazga kuchli zaryadlar oqimi hosil bo`lishiga... deyiladi”. Gapni davom ettiring.

29 / 40

Aylana bo'ylab tekis sekinlanuvchan harakatlanayotgan moddiy nuqtaning chiziqli tezligi va to'liq tezlanishi orasidagi burchak qanday?

30 / 40

Vertolyot gorizontal ravishda 60 km uchib, 90 0 burchak ostida burildi va yana 80 km uchdi. Vertolyotni bosib o‘tgan yo‘lini toping(km).

31 / 40

Mexanika bo’limidagi SI sistemaga kirgan asosiy birliklarni ko’rsating.

32 / 40

Poyezd yo’lning 1/3 qismini 15 m/s tezlik bilan, qolgan qismini 30/ms tezlik bilan o’tsa, uning shu yo’ldagi o’rtacha tezligi qanday (m/s)?

33 / 40

Avtomobil egrilik radiusi 40 m bo’lgan botiq ko’prikdan qanday tezlikda o’tsa, uning yuklanishi 3 ga teng bo’ladi? (m/s)

34 / 40

Agar 90 kg massali kosmonavt kosmik kemada uchish vaqtida yuklanish 3 ga teng bo‘lsa, kosmonavtning og‘irligi qancha bo‘ladi (kN) ?

35 / 40

Kater yo‘lning 1/4 qismini ϑ  tezlik bilan, qolgan qismini esa 2ϑ  tezlik bilan o‘tgan bo‘lsa, uning shu yo‘l­dagi o‘rtacha tezligi qanday?

36 / 40

Jism qachon to`g`ri chiziqli tekis tezlanuvchan harakat qilgan hisoblanadi

37 / 40

Massasi 80 gr bo’lgan probkani suv ostida ushlab turush uchun qancha kuch kerak. (N)

38 / 40

Harakat tenglamalari X1=10t va X2=50-10t bo‘lgan ikkita jism qancha vaqtdan keyin uchrashadilar?

39 / 40

Silindr yon sirti yuzi 24π ga, hajmi 48π ga teng. Silindrning balandligini toping.

40 / 40

Moddiy nuqta A (-1;4) nuqtadan B (2;8) nuqtaga 5s da, so’ngra C (-5;1) nuqtaga 3s da o’tdi. Butun harakat davomidagi o’rtacha tezlikni aniqlang (m/s).

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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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