8-sinf Fizika 1-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 1-chorak ga fikr bildirilmagan. 48 8-sinf Fizika 1-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 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 2 / 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 3 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Barometr C) Dinomometr D) Elektroskop 4 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Qattiq rezina C) Manfiy D) Elektrlanuvchi 5 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Manfiy C) Elektrlanmaydi D) Musbat 6 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Zaryad oqimi C) Zaryadlovchi D) Tok manbayi 7 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 6 ta B) 4 ta C) 2 ta D) 0 ta 8 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) Amper C) kulon D) volt 9 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Fales Miletskiy B) yunon olimi Aristotel C) grek olimi Arximed D) hamma javoblar to'g'ri 10 / 25 Elektr sig’imining o’lchov birligi nima ? A) Farad B) Sekund C) amper D) Kulon 11 / 25 bu shartli belgi qanday nomlanadi? A) Kalit B) Tok manbayi C) Qo’ng’iroq D) O’tkazgichlarning tutashtirmasdan kesishishi 12 / 25 Bitta elektron zaryadi nechaga teng ? A) 9,1*10^-31C B) 2,01*10^-19C C) 8,81*10^-19 D) 1,6*10^-19C 13 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Elektr toki B) Tok kuchi C) Musbat zaryad D) Zaryad 14 / 25 Elektr doimiysining son qiymati nechaga teng? A) 3*10^-19 C B) 8,85*10^-12C^2/N*m^2 C) 9,1*10^-31kg D) -3*10^-19 C 15 / 25 Bitta elektron massasi nechaga teng ? A) 3,36*10^-32kg B) 9,1*10^-31kg C) 1,6*10^-19kg D) 8,81*10^-19kg 16 / 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) 110 V D) 44 V 17 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Barametr B) Elektroskop C) spedometr D) Areometr 18 / 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*10‾⁵ N/C C) 6*10⁴ N/C D) 5*10⁵ N/C 19 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Elementar zaryad B) Manfiy zaryad C) Nuqtaviy zaryad D) Musbat zaryad 20 / 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 21 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Elektr zaryat C) Musbat zaryad D) Zaryad 22 / 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) 4 A C) 5 A D) 2 A 23 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Kulon B) Rezerfort C) Demokret D) Beruniy 24 / 25 Elektrlanishning necha turi mavjud ? A) 4 B) 2 C) 3 D) 5 25 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Areometr C) Ampermetr D) Voltmetr 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 Author: InfoMaster Fizika choraklik