8-sinf Fizika 1-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 1-chorak ga fikr bildirilmagan. 1 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 1-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 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) 110 V B) 220 V C) 44 V D) 180 V 2 / 25 Atom so’zining ma’nosi nima ? A) Zaryad B) Elektr zaryat C) Musbat zaryad D) Bo’linmas 3 / 25 Qahrabo so’zining ma’nosi nima ? A) Manfiy B) Elektrlanuvchi C) Somon tortuvchi D) Qattiq rezina 4 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Areometr B) Barametr C) spedometr D) Elektroskop 5 / 25 Elektr doimiysining son qiymati nechaga teng? A) 8,85*10^-12C^2/N*m^2 B) 3*10^-19 C C) 9,1*10^-31kg D) -3*10^-19 C 6 / 25 Elektr sig’imining o’lchov birligi nima ? A) Sekund B) Kulon C) Farad D) amper 7 / 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) 0.2 Ω D) 0.5 Ω 8 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Musbat B) Elektrlanmaydi C) Manfiy D) to'g'ri javob yo'q 9 / 25 Elektrlanishning necha turi mavjud ? A) 5 B) 2 C) 3 D) 4 10 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 0 ta B) 2 ta C) 4 ta D) 6 ta 11 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Musbat zaryad B) Manfiy zaryad C) Elementar zaryad D) Nuqtaviy zaryad 12 / 25 bu shartli belgi qanday nomlanadi? A) Tok manbayi B) O’tkazgichlarning tutashtirmasdan kesishishi C) Qo’ng’iroq D) Kalit 13 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 9,1*10^-31C C) 2,01*10^-19C D) 8,81*10^-19 14 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Zaryad C) Tok kuchi D) Elektr toki 15 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) kulon C) volt D) Amper 16 / 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) 2 A C) 4 A D) 5 A 17 / 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 18 / 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) 5*10‾⁸ N B) 5,4*10‾⁴ N C) 2*10‾⁸ N D) 270 N 19 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Voltmetr B) Areometr C) kondensator D) Ampermetr 20 / 25 Bitta elektron massasi nechaga teng ? A) 8,81*10^-19kg B) 3,36*10^-32kg C) 9,1*10^-31kg D) 1,6*10^-19kg 21 / 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 22 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Dinomometr B) Barometr C) Elektrometr D) Elektroskop 23 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) o`zgarmaydi B) 2 marta kamayadi C) 4 marta kamaydi D) 2 marta ortadi 24 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Zaryadlovchi C) Zaryad oqimi D) Tok manbayi 25 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Kulon C) Rezerfort D) Demokret 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