Barcha fanlardan online testlar

8-sinf Fizika 4-chorak

InfoMaster

May 5, 2021

356 Ko'rishlar 0

SaqlashSaqlanganOlib tashlandi 1

8-sinf Fizika 4-chorak

Testni Shirinboyev Temurbek tayyorladi.

Ma'lumotlaringizni kriting.

IsmTelefon raqami

1 / 25

Yorug’lik tezligini birinchi bo’lib kim aniqlagan

A) O.Ryomer

B) Nyuton

C) Rezirfort

D) J.Uatt

2 / 25

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

A) 12 V

B) 15 V

C) 3 v

D) 25 V

3 / 25

Kuchlanishni o’lchaydigan asbob nima diyeladi?

A) voltmeter

B) elektrometr

C) elektroskop

D) ampermetr

4 / 25

Elektr qarshiligi qaysi harf bilan belgilanadi?

A) J

B) R

C) U

D) L

5 / 25

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

A) 24 C

B) 10 C

C) 12 C

D) 15 C

6 / 25

Elektr qashiligi formulasi qaysi javobda keltirilgan?

A) Q=I^2Rt

B) I=qt

C) R=ρl/S

D) R=U/I

7 / 25

Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ?

A) 0,1 A

B) 0,5 A

C) 0,2 A

D) 0.4 A

8 / 25

Tok kuchining o'lchov birligi nima?

A) Kulon

B) Amper

C) Joul

D) Volt

9 / 25

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

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

A) 0,4

B) 0,098

C) 0.5

D) 0.017

10 / 25

Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ?

A) 44.4 Ω

B) 18 Ω

C) 44 Ω

D) 20 Ω

11 / 25

Zaryadlar qanday o'zaro ta'sirlashadi?

A) hamma zaryadlar tortiladi va itarishadi

B) hamma zaryadlar tortiladi

C) to'g'ri javob yo'q

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

12 / 25

Jismlarning elektrlanganligini payqovchi asbob qaysi javobda keltirilgan?

A) hamma javob to'g'ri

B) Elektroskop

C) Ampermetr

D) Voltmetr

13 / 25

Zaryadlangan jism atrofida nima hosil bo'ladi?

A) hech nima hosil bo'lmaydi

B) hamma zaryadlar tortiladi

C) Elektr maydoni

D) magnit maydoni

14 / 25

Paskal qonunidan amalda qayerlarda foydalanadi?

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

B) to'g'ri javob yo'q

C) Gidrovlik tormozlarda.

D) Gidrovlik press, pnevmatik tormoz

15 / 25

Jism impulsi birligini ko'rsating

A) N*S

B) kg*m/s

C) m/s^2

D) kg

16 / 25

Elektrlanishning necha turi mavjud ?

A) 3

B) 2

C) 4

D) 5

17 / 25

Bitta elektron zaryadi nechaga teng ?

A) 9,1*10^-31C

B) 2,01*10^-19C

C) 1,6*10^-19C

D) 8,81*10^-19

18 / 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) 5*10⁵ N/C

C) 6*10⁴ N/C

D) 5,1*10⁶ N/C

19 / 25

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

A) 270 N

B) 5*10‾⁸ N

C) 5,4*10‾⁴ N

D) 2*10‾⁸ N

20 / 25

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

A) Elektr toki

B) Zaryad

C) Musbat zaryad

D) Tok kuchi

21 / 25

Elektr doimiysining son qiymati nechaga teng?

A) 9,1*10^-31kg

B) -3*10^-19 C

C) 3*10^-19 C

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

22 / 25

Atom tuzilishi modulini kim kashf etgan ?

A) Kulon

B) Beruniy

C) Demokret

D) Rezerfort

23 / 25

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

A) 2 marta ortadi

B) o`zgarmaydi

C) 4 marta kamaydi

D) 2 marta kamayadi

24 / 25

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

A) kondensator

B) Voltmetr

C) Ampermetr

D) Areometr

25 / 25

O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ?

A) Musbat zaryad

B) Nuqtaviy zaryad

C) Elementar zaryad

D) Manfiy zaryad

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

Tomonidan Wordpress Quiz plugin

Author: InfoMaster

Foydali bo'lsa mamnunmiz

SaqlashSaqlanganOlib tashlandi 1

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 4-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 3-chorak

5-sinf Matematika 4-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