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9-sinf Fizika 2-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 2-chorak

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1 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ(sigma) = Q/L

B) δ (sigma) = F/l

C) δ(sigma) =Q/m

D) δ(sigma) = F/S

2 / 25

100 K Selsiy shkalasida nimaga teng

A) - 373 gradus S

B) -173 gradus S

C) 100 gradus S

D) 373 gradus S

3 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) 423 K

B) 123 K

C) -423 K

D) -123 K

4 / 25

Izotermik jarayon uchun termodinamikaning 1-qonuni

A) Q= ΔU+A

B) Q= ΔU

C) Q=A

D) ΔU=-A

5 / 25

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

A) Avogadro 6*10³⁴ 1/ mol

B) Avogadro 6*10²⁴ 1/ mol

C) Avogadro 6*10²⁶ 1/ mol

D) Avogadro 6*10²³ 1/ mol

6 / 25

Selsiy shkalasidagi t temperatura Kelvin shkalasidagi tempratura bilan bog’lanish formulasi …. ?

A) T = - t - 273

B) T = t- 273

C) T = t + 273

D) T = 273 - t

7 / 25

1 m³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 3,3 * 10²⁸

C) 6 * 10²³

D) 10⁵

8 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

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

B) Suvning kritik temperaturasi

C) Suvning qaynash temperaturasi

D) Suvning qotish temperaturasi

9 / 25

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

A) D = 2 – R

B) D = V / S

C) D = C / π

D) D = m / V

10 / 25

Gazning o’zgarmas hajmida sodir bo'ladigan bir holatdan boshqa holatga o'tish jarayoni ……. jarayon deyiladi

A) adibatik

B) izoxorik

C) izotermik

D) izobarik

11 / 25

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

A) V₂ = T₁ T₂ V₁ / P₁ P₂

B) V₂ = T₁ P₂ / P₁ V₁ T₂

C) V₂ = R₁ P₂ V₁/ T₁ T₂

D) V₂ = P₁ V₁ T ₂ / T₁ P₂

12 / 25

Dinamika so‘zining ma’nosi nima

A) kuch

B) harakat

C) bo‘lak, parcha

D) mashina

13 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) psixrometr

B) termometr

C) Barometr

D) gigrometr

14 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) Avogadro

B) O.Shtern

C) J.Maksvel

D) L.Bolsman

15 / 25

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

A) Avogadro 6*10²⁶ 1/ mol

B) Avogadro 6*10²⁴ 1/ mol

C) Avogadro 6*10³⁴ 1/ mol

D) Avogadro 6*10²³ 1/ mol

16 / 25

O’simlik moyi suyuqlik ustida cheksiz yoyila oladimi

A) Moy qatlami qalinligi eng kichik zarraning kundalang kesimiga tenglashguncha yoyiladi

B) Cheksiz yoyiladi

C) Moy qatlamining qalinligiga bog'liq

D) Cheksiz yoyilmaydi

17 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) pV=RT

B) pV=T/=const

C) pV=m/MRT

D) p=2/3 nEk

18 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning qaynash temperaturasi

B) Suvning kritik temperaturasi

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

D) Suvning qotish temperaturasi

19 / 25

Berilgan tenglamalardan qaysi biri izoxorik jarayonni ifodalaydi?

A) p/T=const

B) pT=const

C) v=m/M

D) pV=const

20 / 25

Ochiq idishdagi 20⁰C tempraturali gazning zichligini 2marta kamaytirish uchun, uning tempraturasini qanchaga orttirish kerak

A) 293°C

B) 190°C

C) 203°C

D) 260°C

21 / 25

1 m ³ suvda necha molekula bor?

A) 10⁵

B) 5 * 10²⁵

C) 6 * 10²³

D) 3,3 * 10²⁸

22 / 25

Diffuziya tezligi nimaga bog’liq

A) Modda tempraturasiga

B) tashqi bosimga

C) modda miqdoriga

D) modda zichligiga

23 / 25

Moddalarnin issiqlik almashinishi natijasida tempraturalarga tenglashishi ...deyiladi

A) to’yingan bug’

B) ideal gaz

C) issiqlik muvozanati

D) tempratura

24 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Molekulalarning atomlardan tashkil topishi

B) Broun harakati

C) Diffuziya

D) Molekulalar orasidagi tortitish kuchi

25 / 25

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

A) 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

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

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