Bo'lim: Fizika choraklik

9-sinf Fizika 4-chorak

May 21, 2021May 21, 2021 da chop etilgan InfoMaster tomonidan 9-sinf Fizika 4-chorak ga fikr bildirilmagan.

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9-sinf Fizika 4-chorak

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1 / 25

Muhit nur sindirish ko’rsatkichining yorug’lik to’lqin uzunligiga bog’liq bo’lishiga yorug’lik ... deyiladi?

A) Interferensiya

B) Sinish

C) Dispersiya

D) Difraksiya

2 / 25

Bu nuqsonda ko’z gavhari nurlarni to’r parda orqasiga to’playdi. Nuqsonning nomini ayting. Bunday odamlar qanday linzadan yasalgan ko’zoynak taqadi?

A) Uzoqdan ko’rarlik, qavariq

B) Daltonizm, qavariq

C) Ranglarni ajratmaslik, botiq

D) Yaqindan ko’rarlik, botiq

3 / 25

4 marta kattalashtirilgan lupaning optik kuchini (dptr) aniqlang. Buyumdan lupagacha bo'lgan masofa 5/16 m ga teng.

A) 16 dptr

B) 4 dptr

C) 8 dptr

D) 10 dptr

4 / 25

Elektromagnit to'lqinlar spektri ko’rinadigan qismining to’lqin uzunligi diapazonini ko’rsating (mikrometr)

A) Lyambda 0-10

B) Lyambda > 0,75

C) Lyambda < 0,4

D) Lyambda 0,4 - 0,75

5 / 25

Fokus masofasi 12 sm bo’lgan qavarik linzaning optik kuchi (dptr) nimaga teng?

A) 1

B) 10

C) 0,1

D) 8,3

6 / 25

Yorug’lik tezligining to’lqin uzunligiga va tebranish davriga bog’liqlik formulasini ko’rsating

A) υ = λ / ν

B) υ = S / t

C) c = λ / T

D) υ = at

7 / 25

Buyum linzadan 4F masofaga joylashtirilgan. Shu buyumning ekrandagi tasviri uning o’zidan necha marta kichik?

A) 2

B) 3

C) 4

D) 1

8 / 25

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

A) Ha

B) Suv qatlamining qalinligiga bog’liq

C) Nurning tushish burchagiga bog’liq

D) Yo’q

9 / 25

Diffuziya tezligi nimaga bog’liq

A) modda miqdoriga

B) tashqi bosimga

C) modda zichligiga

D) Modda tempraturasiga

10 / 25

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

A) R=8,31*10³ J/mol K

B) P=3,14

C) K=1,38 J/K

D) R=8,31 J/mol K

11 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) gaz xolat tenglamasi

B) tempratura muvozanati

C) issiqlik muvozanati

D) issiqlik balansi

12 / 25

Berilgan tenglamalardan qaysi biri izoxorik jarayonni ifodalaydi?

A) pV=const

B) v=m/M

C) p/T=const

D) pT=const

13 / 25

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

A) D = 2 – R

B) D = C / π

C) D = m / V

D) D = V / S

14 / 25

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

A) 190°C

B) 203°C

C) 293°C

D) 260°C

15 / 25

Havodagi suv bug’larining to'yingan holda o'tadigan tempraturasi …………. deyiladi

A) bug’lanish tempraturasi

B) shudring tempraturasi

C) absolyut tempraturasi

D) qaynash tempraturasi

16 / 25

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

A) D = C / π

B) D = m / V

C) D = V / S

D) D = 2 – R

17 / 25

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

A) Avogadro 6*10²⁴ 1/ mol

B) Avogadro 6*10²³ 1/ mol

C) Avogadro 6*10²⁶ 1/ mol

D) Avogadro 6*10³⁴ 1/ mol

18 / 25

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

A) izotermik

B) izoxorik

C) adibatik

D) izobarik

19 / 25

Termodinamikaning 1-qonuni formulasi

A) Q=cm Δt

B) Q=A+ΔU

C) Q= l m

D) Q=L m

20 / 25

Lazerlarda qanday nurlanish turi qo’llaniladi

A) Majburiy nurlanish

B) Tormozli nurlanish

C) Rentgen nurlari

D) Issiqlikdan nurlanish

21 / 25

Qaysi nurlarning zarracha hususiyati ko’proq

A) γ-nurlar

B) Ultirabinafsha

C) Rentgen

D) ko’zga ko’rinadigan

22 / 25

Lazer nurining tarqalish burchagi qancha?

A) 1 radian

B) 10 -5 radian

C) 10 -2 radian

D) 10 -10 radian

23 / 25

Rentgen turibkasining rentgen spektridangi eng "Qattiq" nurlarining chastotasi 10¹⁹ gers bo'lsa bu turibka qanday kuchlanish ostida ishlayotgan bo'ladi. h=6.62*10^-34 Js e=1.6*10^-19 c

A) 100 kV

B) 140 kV

C) 200 kV

D) 40 kV

24 / 25

Fotoeffektning"Qizil chegarasi"ni topish formulasini ko’rsating. (v-nyu) (λ - lyambda)

A) λ=A/h

B) E=hv

C) E=hc/λ

D) L=c/v

25 / 25

Plank doimiysi qiymatini ko’rsating

A) 7,9 km/s

B) 6,63*10¯³⁴ Js

C) 9,8 N/kg

D) 6,7*10 ¯^11 Nm²/kg²

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

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Fizika choraklik

9-sinf Fizika 3-chorak

May 21, 2021May 21, 2021 da chop etilgan InfoMaster tomonidan 9-sinf Fizika 3-chorak ga fikr bildirilmagan.

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9-sinf Fizika 3-chorak

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1 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) Avogadro

B) L.Bolsman

C) O.Shtern

D) J.Maksvel

2 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) PV = mRT/M

B) P₂V₁/T₁= P₂V₂/T₂

C) P₁V₁=P₂V₂

D) P₁/T₁= P₂/T₂

3 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning qaynash temperaturasi

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

C) Suvning kritik temperaturasi

D) Suvning qotish temperaturasi

4 / 25

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

A) Avogadro 6*10²⁴ 1/ mol

B) Avogadro 6*10²³ 1/ mol

C) Avogadro 6*10³⁴ 1/ mol

D) Avogadro 6*10²⁶ 1/ mol

5 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) pV=m/MRT

B) pV=RT

C) p=2/3 nEk

D) pV=T/=const

6 / 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

7 / 25

Sabzavotlarni tuzlash qaysi fizik hodisaga asoslangan

A) Diffuziya

B) Bug'lanish va Qaynash

C) Qaynash

D) Bug'lanish

8 / 25

Ideal gaz haroratining 2marta ko’tarilishi hajm birligidagi molekulalar sonining 2marta kamayishiga olib kelagan bo’lsa, uning bosimi qanday o’zgaradi

A) 5marta kamayadi

B) O’zgarmaydi

C) 2marta kamayadi

D) 4marta ortadi

9 / 25

1 m ³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 3,3 * 10²⁸

C) 6 * 10²³

D) 10⁵

10 / 25

Fotoapparatda tasvir hosil bo’ladigan tekislik va ob’ektiv orasidagi masofa l qancha bo’lishi mumkin? F – ob’ektiv fokus masofasi

A) l>2F

B) l=F

C) l- f

D) l- F

11 / 25

1/F=(n-1)(1/R1+1/R2) formulada n nimani bildiradi?

A) Atrof-muxitning linzaga nisbatan nur sindirish ko’rsatkichi

B) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

C) Linzaning absolyut nur sindirish ko’rsatkichi

D) Sfera radiuslari nisbati

12 / 25

Nur havodan suvga tushmoqda. Bunda to’la ichki qaytish hodisasini kuzatish mumkinmi?

A) Nurning tushish burchagiga bog’liq

B) Ha

C) Suv qatlamining qalinligiga bog’liq

D) Yo’q

13 / 25

Yorug’likning vakuumdagi tezligi (m/s)

A) 30 000

B) 300 000 000

C) 3 000

D) 200 000 000

14 / 25

Normal ko’rish qobiliyatiga ega bo’lgan kishi yassi ko’zguda o’z betining tasvirga diqqat bilan qaraganda ko’zguni qanday masofada (sm) tutib turish lozim?

A) 12,5

B) 6,25

C) 50

D) 25

15 / 25

Jismdagi modda miqdori undagi molekulalar sonini Avogadro doimiysi nisbatiga teng. Shu formulani ko'rsating

A) ν (nyu) = m / M

B) ν (nyu) = 1 / T

C) ν (nyu) = N / Na

D) ν (nyu) = Nm / M

16 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) 423 K

B) -423 K

C) 123 K

D) -123 K

17 / 25

Izoxorik jarayon uchun termodinamikaning 1-qonuni

A) Q= ΔU+A

B) ΔU=-A

C) Q= ΔU

D) Q=A

18 / 25

1 m³ suvda necha molekula bor?

A) 6 * 10²³

B) 5 * 10²⁵

C) 3,3 * 10²⁸

D) 10⁵

19 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) Pm = vRT/M

B) Pr = mRT/v

C) PV = RT/M

D) PV = mRT/M

20 / 25

Termodinamikaning 1-qonuni formulasi

A) Q=L m

B) Q=A+ΔU

C) Q=cm Δt

D) Q= l m

21 / 25

Izotermik jarayon uchun termodinamikaning 1-qonuni

A) ΔU=-A

B) Q=A

C) Q= ΔU

D) Q= ΔU+A

22 / 25

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

A) Broun

B) Shtern

C) Avogadro

D) Maksvell

23 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) gaz xolat tenglamasi

B) issiqlik muvozanati

C) issiqlik balansi

D) tempratura muvozanati

24 / 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

25 / 25

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

A) D = C / π

B) D = 2 – R

C) D = V / S

D) D = m / V

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

tomonidan Wordpress Quiz plugin

Fizika choraklik

9-sinf Fizika 2-chorak

May 21, 2021May 21, 2021 da chop etilgan InfoMaster tomonidan 9-sinf Fizika 2-chorak ga fikr bildirilmagan.

Tomonidan yaratilgan InfoMaster

9-sinf Fizika 2-chorak

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Ismi familiyangizni kriting:

IsmTelefon raqami

1 / 25

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

A) 2 marta ortadi

B) 2 marta kamayadi

C) 4 marta ortadi

D) 4 marta kamayadi

2 / 25

100 K Selsiy shkalasida nimaga teng

A) - 373 gradus S

B) 100 gradus S

C) 373 gradus S

D) -173 gradus S

3 / 25

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

A) Avogadro

B) Gey – Lyussak

C) Boyl-Mariott

D) Sharl

4 / 25

m= const, V=const bo’lganda P/T =const. Bu ifodalar qaysi qonunga talluqli

A) izotermik

B) izaxorik

C) adibatik

D) izobarik

5 / 25

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

A) Avogadro 6*10²³ 1/ mol

B) Avogadro 6*10³⁴ 1/ mol

C) Avogadro 6*10²⁶ 1/ mol

D) Avogadro 6*10²⁴ 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

Selsiy shkalasining nol nuqtasi nimani bildiradi

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

B) Suvning qotish temperaturasi

C) Suvning qaynash temperaturasi

D) Suvning kritik temperaturasi

8 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -423 K

B) 123 K

C) 423 K

D) -123 K

9 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) issiqlik muvozanati

B) tempratura muvozanati

C) issiqlik balansi

D) gaz xolat tenglamasi

10 / 25

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

A) 4 marta kamayadi

B) 2 marta kamayadi

C) 4 marta ortadi

D) 2 marta ortadi

11 / 25

Berilgan tenglamalardan qaysi biri izoxorik jarayonni ifodalaydi?

A) v=m/M

B) p/T=const

C) pV=const

D) pT=const

12 / 25

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

A) D = C / π

B) D = 2 – R

C) D = m / V

D) D = V / S

13 / 25

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

A) Boyl-Mariott

B) Sharl’

C) Gey – Lyussak

D) Avogadro

14 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) termometr

B) Barometr

C) psixrometr

D) gigrometr

15 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) gaz xolat tenglamasi

B) tempratura muvozanati

C) issiqlik muvozanati

D) issiqlik balansi

16 / 25

1 m ³ suvda necha molekula bor?

A) 3,3 * 10²⁸

B) 6 * 10²³

C) 5 * 10²⁵

D) 10⁵

17 / 25

Moddalarnin issiqlik almashinishi natijasida tempraturalarga tenglashishi ...deyiladi

A) tempratura

B) issiqlik muvozanati

C) to’yingan bug’

D) ideal gaz

18 / 25

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

A) Diffuziya

B) Broun xarakati

C) Broun xarakati

D) Erish

19 / 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 m ayday zarralardan tashkil topgan va ular orasida o’zaro ta’sir kuchlari mavjud

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

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

Gapni davom ettiring. Moddaning 1 moliga to’g’ri kelgan massani kg (gr)larda ifodalangan qiymatiga ….deyiladi

A) molar massasi

B) moda miqdori

C) modda

D) nisbiy molekulalar massa

22 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Broun harakati

B) Diffuziya

C) Molekulalarning atomlardan tashkil topishi

D) Molekulalar orasidagi tortitish kuchi

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) K=1,38 J/K

D) R=8,31 J/mol K

24 / 25

Ideal gaz haroratining 2marta ko’tarilishi hajm birligidagi molekulalar sonining 2marta kamayishiga olib kelagan bo’lsa, uning bosimi qanday o’zgaradi

A) 2marta kamayadi

B) 4marta ortadi

C) 5marta kamayadi

D) O’zgarmaydi

25 / 25

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

A) Shtern

B) Avogadro

C) Maksvell

D) Broun

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

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Fizika choraklik

9-sinf Fizika 1-chorak

May 21, 2021May 21, 2021 da chop etilgan InfoMaster tomonidan 9-sinf Fizika 1-chorak ga fikr bildirilmagan.

Tomonidan yaratilgan InfoMaster

9-sinf Fizika 1-chorak

Testni Vafaqulov Alisher tayyorladi.

Ismi familiyangizni kriting:

IsmTelefon raqami

1 / 25

Ideal gaz haroratining 2marta ko’tarilishi hajm birligidagi molekulalar sonining 2marta kamayishiga olib kelagan bo’lsa, uning bosimi qanday o’zgaradi

A) O’zgarmaydi

B) 2marta kamayadi

C) 4marta ortadi

D) 5marta kamayadi

2 / 25

O’simlik moyi suyuqlik ustida cheksiz yoyila oladimi

A) Cheksiz yoyilmaydi

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

C) Cheksiz yoyiladi

D) Moy qatlamining qalinligiga bog'liq

3 / 25

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

A) 293°C

B) 203°C

C) 260°C

D) 190°C

4 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Molekulalarning atomlardan tashkil topishi

B) Diffuziya

C) Molekulalar orasidagi tortitish kuchi

D) Broun harakati

5 / 25

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

A) Avogadro

B) Shtern

C) Broun

D) Maksvell

6 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) P₁V₁=P₂V₂

B) PV = mRT/M

C) P₂V₁/T₁= P₂V₂/T₂

D) P₁/T₁= P₂/T₂

7 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) p=2/3 nEk

B) pV=T/=const

C) pV=m/MRT

D) pV=RT

8 / 25

Diffuziya tezligi nimaga bog’liq

A) modda miqdoriga

B) modda zichligiga

C) tashqi bosimga

D) Modda tempraturasiga

9 / 25

Gapni davom ettiring. Moddaning 1 moliga to’g’ri kelgan massani kg (gr)larda ifodalangan qiymatiga ….deyiladi

A) moda miqdori

B) molar massasi

C) nisbiy molekulalar massa

D) modda

10 / 25

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

A) R=8,31*10³ J/mol K

B) K=1,38 J/K

C) P=3,14

D) R=8,31 J/mol K

11 / 25

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

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

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

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

12 / 25

Berilgan tenglamalardan qaysi biri izoxorik jarayonni ifodalaydi?

A) pV=const

B) pT=const

C) v=m/M

D) p/T=const

13 / 25

Moddalarnin issiqlik almashinishi natijasida tempraturalarga tenglashishi ...deyiladi

A) to’yingan bug’

B) issiqlik muvozanati

C) ideal gaz

D) tempratura

14 / 25

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

A) Avogadro 6*10³⁴ 1/ mol

B) Avogadro 6*10²³ 1/ mol

C) Avogadro 6*10²⁶ 1/ mol

D) Avogadro 6*10²⁴ 1/ mol

15 / 25

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

A) Diffuziya

B) Broun xarakati

C) Erish

D) Broun xarakati

16 / 25

1 m ³ suvda necha molekula bor?

A) 10⁵

B) 5 * 10²⁵

C) 6 * 10²³

D) 3,3 * 10²⁸

17 / 25

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

A) 2 marta kamayadi

B) 4 marta kamayadi

C) 2 marta ortadi

D) 4 marta ortadi

18 / 25

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

A) Sharl’

B) Avogadro

C) Gey – Lyussak

D) Boyl-Mariott

19 / 25

Sabzavotlarni tuzlash qaysi fizik hodisaga asoslangan

A) Bug'lanish

B) Bug'lanish va Qaynash

C) Diffuziya

D) Qaynash

20 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) L.Bolsman

B) Avogadro

C) O.Shtern

D) J.Maksvel

21 / 25

Dinamika so‘zining ma’nosi nima

A) harakat

B) kuch

C) mashina

D) bo‘lak, parcha

22 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning kritik temperaturasi

B) Suvning qotish temperaturasi

C) Suvning qaynash temperaturasi

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

23 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) gaz xolat tenglamasi

B) issiqlik balansi

C) tempratura muvozanati

D) issiqlik muvozanati

24 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) psixrometr

B) gigrometr

C) termometr

D) Barometr

25 / 25

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

A) D = m / V

B) D = 2 – R

C) D = C / π

D) D = V / S

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

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8-sinf Fizika 4-chorak

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8-sinf Fizika 4-chorak

Testni Shirinboyev Temurbek tayyorladi.

Ma'lumotlaringizni kriting.

IsmTelefon raqami

1 / 25

Elektr sig’imining o’lchov birligi nima ?

A) Farad

B) Kulon

C) Sekund

D) amper

2 / 25

Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan?

A) hamma javoblar to'g'ri

B) grek olimi Arximed

C) yunon olimi Fales Miletskiy

D) yunon olimi Aristotel

3 / 25

Atom tuzilishi modulini kim kashf etgan ?

A) Kulon

B) Rezerfort

C) Beruniy

D) Demokret

4 / 25

Bitta elektron zaryadi nechaga teng ?

A) 8,81*10^-19

B) 1,6*10^-19C

C) 2,01*10^-19C

D) 9,1*10^-31C

5 / 25

Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi?

A) Voltmetr

B) kondensator

C) Ampermetr

D) Areometr

6 / 25

Qahrabo so’zining ma’nosi nima ?

A) Elektrlanuvchi

B) Manfiy

C) Qattiq rezina

D) Somon tortuvchi

7 / 25

Gaz orqali elektr toki o’tish jarayoni …..deyiladi ?

A) Elektroliz

B) Gaz razryadi

C) Ion bog’lanish

D) Uchqun

8 / 25

Elektr toki bajargan ishining asosiy birligi nima?

A) Paskal

B) Volt

C) Vatt sekund

D) amper

9 / 25

Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ?

A) Galvonaplastina

B) eletrlolez

C) Ion bog’lanish

D) Galvonastegiya

10 / 25

Elektr tokining quvvati formulasini ko’rsating ?

A) P=IU

B) I=q/t

C) N=A/t

D) R=I/U

11 / 25

Yorug’lik tezligini birinchi bo’lib kim aniqlagan

A) O.Ryomer

B) Rezirfort

C) J.Uatt

D) Nyuton

12 / 25

Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ?

A) Doimiy magnitlar

B) Ohangrabo-temirni tortuvchi

C) Tabiy magnitlar

D) Suniy magnitlar

13 / 25

220 V kuchlanishda 0,25 A tok olib yonayotgan elektr lampochkadagi tokning quvvatini toping ?

A) 500 W

B) 5,5 W

C) 55 W

D) 550 W

14 / 25

Quyidagi formulalardan qaysi biri kuch momentini formulasi.

A) M=F/L

B) M=FL

C) v=s/t

D) F=mg

15 / 25

Paskal qonunidan amalda qayerlarda foydalanadi?

A) A, B javob to'g'ri.

B) Gidrovlik press, pnevmatik tormoz

C) Gidrovlik tormozlarda.

D) to'g'ri javob yo'q

16 / 25

Trubalarda va ariqlarda tor joyida suvning bosimi qanday bo'ladi?

A) teng

B) Hamma joyida bir xil.

C) Kichik

D) katta

17 / 25

Birinchi kosmik tezlik qanchaga teng?

A) 11,1 km/s

B) 8,4km/s

C) 7,9 km/s

D) 11,2 km/s

18 / 25

Zaryadlar qanday o'zaro ta'sirlashadi?

A) hamma zaryadlar tortiladi

B) to'g'ri javob yo'q

C) bir xil ishorali zaryadlar itarishadi, har xil ishoraki zaryadlar tortiladi

D) hamma zaryadlar tortiladi va itarishadi

19 / 25

Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ?

A) rezistor

B) elektroskop

C) elektrometr

D) potensiyometr

20 / 25

Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi

A) 15 J

B) 155 J

C) 20 J

D) 220 J

21 / 25

Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan?

A) 15 V

B) 25 V

C) 3 v

D) 12 V

22 / 25

Elektr qarshiligi qaysi harf bilan belgilanadi?

A) R

B) U

C) L

D) J

23 / 25

Uzunligi 1 m, ko’ndalang kesimining yuzi 0,4 mm² bo’lgan nikelin simning uchlaridagi kuchlanish 2 V gat eng. Shu elektr zanjir orqali o’tayotgan tok kuchini aniqlang?

$\rho =4\cdot 10^{-7} \Omega \cdot m$

A) 4 A

B) 2 A

C) 9 A

D) 0,8 A

24 / 25

Tok kuchining o'lchov birligi nima?

A) Joul

B) Kulon

C) Volt

D) Amper

25 / 25

Kuchlanishni o’lchaydigan asbob nima diyeladi?

A) elektrometr

B) voltmeter

C) ampermetr

D) elektroskop

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

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8-sinf Fizika 3-chorak

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8-sinf Fizika 3-chorak

Testni Shirinboyev Temurbek tayyorladi.

1 / 25

Bir-biridan 10sm masofada turgan sharchalardanbirining zaryadi -2*10^-8C, ikkinchisiniki esa 3*10^-8C ga teng. Ular qanday kuch bilan tortishadi?

A) 5*10‾⁸ N

B) 270 N

C) 5,4*10‾⁴ N

D) 2*10‾⁸ N

2 / 25

Atom tuzilishi modulini kim kashf etgan ?

A) Rezerfort

B) Beruniy

C) Kulon

D) Demokret

3 / 25

bu shartli belgi qanday nomlanadi?

A) Tok manbayi

B) O’tkazgichlarning tutashtirmasdan kesishishi

C) Kalit

D) Qo’ng’iroq

4 / 25

Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta?

A) 6 ta

B) 0 ta

C) 2 ta

D) 4 ta

5 / 25

Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi?

A) o`zgarmaydi

B) 2 marta kamayadi

C) 2 marta ortadi

D) 4 marta kamaydi

6 / 25

Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ?

A) Barametr

B) Elektroskop

C) spedometr

D) Areometr

7 / 25

Atom so’zining ma’nosi nima ?

A) Zaryad

B) Musbat zaryad

C) Elektr zaryat

D) Bo’linmas

8 / 25

Elektrlanishning necha turi mavjud ?

A) 2

B) 4

C) 5

D) 3

9 / 25

Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan?

A) grek olimi Arximed

B) hamma javoblar to'g'ri

C) yunon olimi Aristotel

D) yunon olimi Fales Miletskiy

10 / 25

Bitta elektron massasi nechaga teng ?

A) 9,1*10^-31kg

B) 8,81*10^-19kg

C) 1,6*10^-19kg

D) 3,36*10^-32kg

11 / 25

Qarshiliklari 200 Ω va 300 Ω bo`lgan ikkita elektr lampa parallel ulanib, 240 V tarmoqqa kiritilgan. Umumiy tok kattaligini toping.

A) 4 A

B) 1.8 A

C) 2 A

D) 5 A

12 / 25

Elektr doimiysining son qiymati nechaga teng?

A) 8,85*10^-12C^2/N*m^2

B) -3*10^-19 C

C) 3*10^-19 C

D) 9,1*10^-31kg

13 / 25

Qarshiligi 10 Ω bo`lgan mis o`tkazgichni 5 ta teng bo`lakka bo`lib, bo`laklar o`zaro parallel ulandi. Umumiy qarshilikni toping.

A) 1 Ω

B) 0.4 Ω

C) 0.5 Ω

D) 0.2 Ω

14 / 25

Elektr zaryadining o’lchov birligi nima ?

A) Joul

B) kulon

C) volt

D) Amper

15 / 25

Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ?

A) Elektrometr

B) Barometr

C) Dinomometr

D) Elektroskop

16 / 25

220 V kuchlanishda 0,25 A tok olib yonayotgan elektr lampochkadagi tokning quvvatini toping ?

A) 5,5 W

B) 55 W

C) 550 W

D) 500 W