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8-sinf Fizika 2-chorak

InfoMaster

May 5, 2021

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8-sinf Fizika 2-chorak

Testni Shirinboyev Temurbek tayyorladi.

1 / 25

Elekt kuchlanishi formulasi berilgan javobni ko’rsating.

A) I=q/t

B) E=U/d

C) U=A|q

D) F=kq/r^2

2 / 25

Temir moddasining (20⁰C da) solishtirma qashiligi nechaga teng?

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

A) 0,098

B) 0.5

C) 0,4

D) 0.017

3 / 25

Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ?

A) 12 C

B) 15 C

C) 10 C

D) 24 C

4 / 25

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

A) 3 v

B) 15 V

C) 25 V

D) 12 V

5 / 25

Rezistor so’zining manosi nima ?

A) Tok kuchi

B) Zaryad

C) Kuchlanish

D) Qarshilik

6 / 25

Tok kuchining o'lchov birligi nima?

A) Kulon

B) Amper

C) Volt

D) Joul

7 / 25

Kuchlanishni o’lchaydigan asbob nima diyeladi?

A) ampermetr

B) voltmeter

C) elektroskop

D) elektrometr

8 / 25

Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating?

A) 0,5 A

B) 6 A

C) 0,4 A

D) 0,1 A

9 / 25

Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ?

A) 0,5 A

B) 0.4 A

C) 0,2 A

D) 0,1 A

10 / 25

Tok kuchini o’lchaydigan asbob qanday nomlanadi ?

A) Ampermetr

B) Voltmetr

C) Elektrometr

D) Elektroskop

11 / 25

Elektr qashiligi formulasi qaysi javobda keltirilgan?

A) Q=I^2Rt

B) R=U/I

C) I=qt

D) R=ρl/S

12 / 25

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

A) 5 A

B) 1.8 A

C) 2 A

D) 4 A

13 / 25

Atom tuzilishi modulini kim kashf etgan ?

A) Rezerfort

B) Demokret

C) Beruniy

D) Kulon

14 / 25

Bitta elektron massasi nechaga teng ?

A) 1,6*10^-19kg

B) 9,1*10^-31kg

C) 3,36*10^-32kg

D) 8,81*10^-19kg

15 / 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) 0.4 Ω

B) 0.5 Ω

C) 1 Ω

D) 0.2 Ω

16 / 25

Qahrabo so’zining ma’nosi nima ?

A) Elektrlanuvchi

B) Somon tortuvchi

C) Manfiy

D) Qattiq rezina

17 / 25

Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi?

A) Zaryad

B) Tok kuchi

C) Musbat zaryad

D) Elektr toki

18 / 25

bu shartli belgi qanday nomlanadi?

A) Qo’ng’iroq

B) Kalit

C) O’tkazgichlarning tutashtirmasdan kesishishi

D) Tok manbayi

19 / 25

Elektr zanjirida ketma-ket ulangan iste`molchilar qarshiliklari 80, 120 va 200 Om dan iborat. Umumiy kuchlanish 220 V bo`lsa, uchinchi iste`molchidagi kuchlanish tushuvini toping

A) 44 V

B) 220 V

C) 110 V

D) 180 V

20 / 25

Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ?

A) Dinomometr

B) Barometr

C) Elektrometr

D) Elektroskop

21 / 25

Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi?

A) Elektrlanmaydi

B) to'g'ri javob yo'q

C) Manfiy

D) Musbat

22 / 25

Elektr sig’imining o’lchov birligi nima ?

A) Kulon

B) amper

C) Sekund

D) Farad

23 / 25

Zaryadi -5*10^-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping?

A) 5,1*10⁶ N/C

B) 5*10⁵ N/C

C) 5*10‾⁵ N/C

D) 6*10⁴ N/C

24 / 25

Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan?

A) grek olimi Arximed

B) yunon olimi Aristotel

C) yunon olimi Fales Miletskiy

D) hamma javoblar to'g'ri

25 / 25

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

A) 2 ta

B) 6 ta

C) 0 ta

D) 4 ta

Baholash mezoni

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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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May 2021
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Elementlarni Solishtiring

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Solishtiring

8-sinf Fizika 2-chorak

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

Author: InfoMaster

8-sinf Fizika 1-chorak

8-sinf Fizika 3-chorak

9-sinf Fizika 4-chorak

9-sinf Fizika 3-chorak

9-sinf Fizika 2-chorak

9-sinf Fizika 1-chorak

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Elementlarni Solishtiring