Barcha fanlardan online testlar

8-sinf Fizika 2-chorak

InfoMaster

May 5, 2021

818 Ko'rishlar 0

SaqlashSaqlanganOlib tashlandi 0

Tomonidan yaratilgan InfoMaster

8-sinf Fizika 2-chorak

Testni Shirinboyev Temurbek tayyorladi.

1 / 25

Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan?

A) yunon olimi Aristotel

B) grek olimi Arximed

C) yunon olimi Fales Miletskiy

D) hamma javoblar to'g'ri

2 / 25

Atom tuzilishi modulini kim kashf etgan ?

A) Rezerfort

B) Kulon

C) Demokret

D) Beruniy

3 / 25

Elektr sig’imining o’lchov birligi nima ?

A) Farad

B) Sekund

C) Kulon

D) amper

4 / 25

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

A) Barametr

B) Elektroskop

C) Areometr

D) spedometr

5 / 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

6 / 25

Akkumulator so’zining ma’nosi nima ?

A) Zaryad oqimi

B) Tok manbayi

C) To’plovchi

D) Zaryadlovchi

7 / 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) 180 V

C) 220 V

D) 110 V

8 / 25

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

A) kondensator

B) Voltmetr

C) Areometr

D) Ampermetr

9 / 25

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

A) Elektr toki

B) Tok kuchi

C) Musbat zaryad

D) Zaryad

10 / 25

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

A) 5*10‾⁵ N/C

B) 6*10⁴ N/C

C) 5*10⁵ N/C

D) 5,1*10⁶ N/C

11 / 25

Atom so’zining ma’nosi nima ?

A) Zaryad

B) Elektr zaryat

C) Bo’linmas

D) Musbat zaryad

12 / 25

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

A) o`zgarmaydi

B) 4 marta kamaydi

C) 2 marta ortadi

D) 2 marta kamayadi

13 / 25

Elektrlanishning necha turi mavjud ?

A) 3

B) 4

C) 2

D) 5

14 / 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) 0.5 Ω

B) 0.4 Ω

C) 0.2 Ω

D) 1 Ω

15 / 25

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

A) 0,1 A

B) 0,5 A

C) 6 A

D) 0,4 A

16 / 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) 25 V

C) 12 V

D) 15 V

17 / 25

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

A) potensiyometr

B) rezistor

C) elektrometr

D) elektroskop

18 / 25

Kuchlanishni o’lchaydigan asbob nima diyeladi?

A) ampermetr

B) voltmeter

C) elektroskop

D) elektrometr

19 / 25

Tok kuchini o’lchaydigan asbob qanday nomlanadi ?

A) Voltmetr

B) Elektrometr

C) Elektroskop

D) Ampermetr

20 / 25

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

A) 220 J

B) 155 J

C) 20 J

D) 15 J

21 / 25

Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng?

A) 500 kV

B) 220 V

C) 1,5 V

D) 5V

22 / 25

Elekt kuchlanishi formulasi berilgan javobni ko’rsating.

A) E=U/d

B) U=A|q

C) F=kq/r^2

D) I=q/t

23 / 25

Tok kuchi formulasi keltirilgan javobni aniqlang?

A) I=q/t

B) Q=ItU

C) R=U/I

D) U=A/q

24 / 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

25 / 25

Elektr qarshiligi qaysi harf bilan belgilanadi?

A) J

B) R

C) L

D) U

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

Author: InfoMaster

Foydali bo'lsa mamnunmiz

SaqlashSaqlanganOlib tashlandi 0

Oldingi

Javob qoldiring

Sharhlash uchun siz saytga kirishingiz lozim.

May 2021
Du	Se	Ch	Pa	Ju	Sh	Ya
	1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

Elementlarni Solishtiring

Jami (0)

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

Javob qoldiring

Elementlarni Solishtiring