8-sinf Fizika 1-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 1-chorak ga fikr bildirilmagan. 3 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 1-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Qahrabo so’zining ma’nosi nima ? A) Qattiq rezina B) Somon tortuvchi C) Manfiy D) Elektrlanuvchi 2 / 25 Qarshiliklari 200 Ω va 300 Ω bo`lgan ikkita elektr lampa parallel ulanib, 240 V tarmoqqa kiritilgan. Umumiy tok kattaligini toping. A) 1.8 A B) 5 A C) 2 A D) 4 A 3 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Manfiy B) Musbat C) Elektrlanmaydi D) to'g'ri javob yo'q 4 / 25 Elektrlanishning necha turi mavjud ? A) 2 B) 4 C) 5 D) 3 5 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Kulon B) Demokret C) Rezerfort D) Beruniy 6 / 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) 1 Ω C) 0.5 Ω D) 0.2 Ω 7 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Ampermetr B) kondensator C) Areometr D) Voltmetr 8 / 25 Elektr sig’imining o’lchov birligi nima ? A) Sekund B) amper C) Farad D) Kulon 9 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) hamma javoblar to'g'ri B) yunon olimi Fales Miletskiy C) grek olimi Arximed D) yunon olimi Aristotel 10 / 25 bu shartli belgi qanday nomlanadi? A) O’tkazgichlarning tutashtirmasdan kesishishi B) Tok manbayi C) Qo’ng’iroq D) Kalit 11 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 2 ta B) 0 ta C) 6 ta D) 4 ta 12 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Nuqtaviy zaryad B) Manfiy zaryad C) Musbat zaryad D) Elementar zaryad 13 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 2 marta kamayadi B) 4 marta kamaydi C) o`zgarmaydi D) 2 marta ortadi 14 / 25 Elektr doimiysining son qiymati nechaga teng? A) 9,1*10^-31kg B) 8,85*10^-12C^2/N*m^2 C) 3*10^-19 C D) -3*10^-19 C 15 / 25 Bitta elektron massasi nechaga teng ? A) 1,6*10^-19kg B) 8,81*10^-19kg C) 3,36*10^-32kg D) 9,1*10^-31kg 16 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Tok kuchi B) Musbat zaryad C) Zaryad D) Elektr toki 17 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryadlovchi B) Zaryad oqimi C) To’plovchi D) Tok manbayi 18 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 8,81*10^-19 C) 2,01*10^-19C D) 9,1*10^-31C 19 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Barometr B) Dinomometr C) Elektroskop D) Elektrometr 20 / 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) 220 V B) 180 V C) 44 V D) 110 V 21 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Areometr B) Elektroskop C) spedometr D) Barametr 22 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Musbat zaryad C) Zaryad D) Elektr zaryat 23 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5*10⁵ N/C B) 5*10‾⁵ N/C C) 5,1*10⁶ N/C D) 6*10⁴ N/C 24 / 25 Elektr zaryadining o’lchov birligi nima ? A) volt B) kulon C) Joul D) Amper 25 / 25 Bir-biridan 10sm masofada turgan sharchalardanbirining zaryadi -2*10-8 C, ikkinchisiniki esa 3*10-8C ga teng. Ular qanday kuch bilan tortishadi? A) 270 N B) 2*10‾⁸ N C) 5,4*10‾⁴ N D) 5*10‾⁸ N 0% Testni qayta ishga tushiring Baholash mezoni 86%-100% 5 baho 71%-85% 4 baho 56%-70% 3 baho 55% va kamiga 2 baho Fikr-mulohaza yuboring tomonidan Wordpress Quiz plugin Author: InfoMaster Fizika choraklik