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9-sinf Fizika 3-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 3-chorak

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1 / 25

Yorug’lik suvda qanday tezlik (km/s) bilan tarqaladi? Suvning vakuumga nisbatan nur sindirish ko’rsatkichi 1,33 ga teng.

A) 200000

B) 300000

C) 225000

D) 150000

2 / 25

Yorug’likning vakuumdagi tezligi (m/s)

A) 300 000 000

B) 30 000

C) 3 000

D) 200 000 000

3 / 25

Asosiy qismi ob’ektiv va kameradan iborat. Tasvir kameraning orqa tomonida to’nkarilgan, haqiqiy va kichraygan holda hosil bo’ladi. Nima haqida gap bormoqda?

A) Fotoapparat

B) Epidiaskop

C) Proyeksion apparat

D) Mikroskop

4 / 25

Fokus masofasi F, buyumdan linzagacha masofa d, linzadan tasvirgacha masofa f bo’lsa, d>2F, F

A) Fotoapparat va ko’z

B) Fotoapparat

C) Proyeksion apparat

D) Lupa

5 / 25

Nur suvdan havoga tushmoqda. Bunda to’la ichki qaytish hodisasini kuzatish mumkinmi?

A) Yo’q

B) Ha

C) Nurning tushish burchagiga bog’liq

D) Suv qatlamining qalinligiga bog’liq

6 / 25

Azotning molyar massasi 0,028 kg/mol. Azot molekulasining massasi nimaga teng

A) 4,6 * 10¯⁴² g

B) 4,6 * 10¯²³ g

C) 56 * 10¯²³ g

D) 4,6 * 10¯²⁴ g

7 / 25

Suv sirtida moy tomchisi yoyilishidan foydalanib, molekula diametrini qaysi formuladan o'lchanishi mumkin

A) D = m / V

B) D = C / π

C) D = V / S

D) D = 2 – R

8 / 25

1 m³ suvda necha molekula bor?

A) 6 * 10²³

B) 3,3 * 10²⁸

C) 10⁵

D) 5 * 10²⁵

9 / 25

Ideal gaz temperaturasi va konsentratsiyasi 2 marta kamaysa, uning bosimi qanday o'zgaradi

A) 4 marta kamayadi

B) 4 marta ortadi

C) 2 marta kamayadi

D) 2 marta ortadi

10 / 25

Moddaning bir moldagi atomlar yoki molekulalar soni ........ doimiysi deb ataladi, va uning qiymati ....?

A) Avogadro 6*10²⁴ 1/ mol

B) Avogadro 6*10³⁴ 1/ mol

C) Avogadro 6*10²³ 1/ mol

D) Avogadro 6*10²⁶ 1/ mol

11 / 25

P1 V1 / T1 = P2 V2 / T2 formuladan V2 ifodasini toping

A) V₂ = T₁ T₂ V₁ / P₁ P₂

B) V₂ = R₁ P₂ V₁/ T₁ T₂

C) V₂ = P₁ V₁ T ₂ / T₁ P₂

D) V₂ = T₁ P₂ / P₁ V₁ T₂

12 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ (sigma) = F/l

B) δ(sigma) = F/S

C) δ(sigma) = Q/L

D) δ(sigma) =Q/m

13 / 25

O’zgarmas temperaturada berilgan massali gaz hajmining unga mos kelgan bosimiga ko’paytmasi o’zgarmas kattalik . Bu qonun ……….. qonuni

A) Gey – Lyussak

B) Sharl

C) Boyl-Mariott

D) Avogadro

14 / 25

Termodinamikaning 1-qonuni formulasi

A) Q=cm Δt

B) Q=A+ΔU

C) Q= l m

D) Q=L m

15 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -423 K

B) 123 K

C) -123 K

D) 423 K

16 / 25

Molekulalarning xarakat tezliklarini tajribada birinchi bo'lib ....... aniqlanadi

A) Broun

B) Maksvell

C) Shtern

D) Avogadro

17 / 25

Molekulalar kinetik nazariyaning asosiy qoidalari qaysi javobda to’liq bayon qilinngan

A) Modda elementlar zarralardan tuziladi va ular bir-biriga to’xtovsiz aylanib turadi

B) Moddalar mayda zarralar- molekulalar va atomlardan tashkil topgan, ular tartibsiz va to’xtovsiz harakatda, atom va molekulalar bir-birlari bilan o’zaro ta’sirda, moddalarning xossalari shu molekulalar harakati va o’zaro ta’siri biolan belgilanadi

C) Modda mayday bo’laklardan tuziladi va ular fazoni uzluksiz to’ldiradi

D) Modda m ayday zarralardan tashkil topgan va ular orasida o’zaro ta’sir kuchlari mavjud

18 / 25

1 m ³ suvda necha molekula bor?

A) 10⁵

B) 3,3 * 10²⁸

C) 6 * 10²³

D) 5 * 10²⁵

19 / 25

Moddaning bir moldagi atomlar yoki molekulalar soni ........ doimiysi deb ataladi, va uning qiymati ....?

A) Avogadro 6*10²³ 1/ mol

B) Avogadro 6*10²⁴ 1/ mol

C) Avogadro 6*10³⁴ 1/ mol

D) Avogadro 6*10²⁶ 1/ mol

20 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning kritik temperaturasi

B) Suvning qotish temperaturasi

C) Tabiatda bo’lishi mumkin bo'lgan eng past temperatura

D) Suvning qaynash temperaturasi

21 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) termometr

B) psixrometr

C) gigrometr

D) Barometr

22 / 25

Odam va hayvonlar ichagidan oziqlantiruvchi moddalar qonunga qaysi fizik hodisa tufayli o’tadi

A) Broun xarakati

B) Diffuziya

C) Broun xarakati

D) Erish

23 / 25

Universal gaz doimiysining qiymati va o'lchov birligini ko'rsating

A) P=3,14

B) R=8,31*10³ J/mol K

C) R=8,31 J/mol K

D) K=1,38 J/K

24 / 25

Diffuziya tezligi nimaga bog’liq

A) modda miqdoriga

B) tashqi bosimga

C) modda zichligiga

D) Modda tempraturasiga

25 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Molekulalarning atomlardan tashkil topishi

B) Diffuziya

C) Broun harakati

D) Molekulalar orasidagi tortitish kuchi

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