8-sinf Fizika 1-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 1-chorak ga fikr bildirilmagan. 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 1-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Musbat zaryad C) Elementar zaryad D) Nuqtaviy zaryad 2 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Elektr toki B) Tok kuchi C) Musbat zaryad D) Zaryad 3 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Aristotel B) yunon olimi Fales Miletskiy C) hamma javoblar to'g'ri D) grek olimi Arximed 4 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Manfiy B) Musbat C) Elektrlanmaydi D) to'g'ri javob yo'q 5 / 25 Qahrabo so’zining ma’nosi nima ? A) Elektrlanuvchi B) Somon tortuvchi C) Manfiy D) Qattiq rezina 6 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryad oqimi B) Zaryadlovchi C) Tok manbayi D) To’plovchi 7 / 25 bu shartli belgi qanday nomlanadi? A) Qo’ng’iroq B) O’tkazgichlarning tutashtirmasdan kesishishi C) Kalit D) Tok manbayi 8 / 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 kamayadi D) 2 marta ortadi 9 / 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) 2*10‾⁸ N B) 5*10‾⁸ N C) 5,4*10‾⁴ N D) 270 N 10 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Demokret C) Kulon D) Rezerfort 11 / 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 12 / 25 Elektr sig’imining o’lchov birligi nima ? A) Farad B) Kulon C) amper D) Sekund 13 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 6*10⁴ N/C B) 5,1*10⁶ N/C C) 5*10‾⁵ N/C D) 5*10⁵ N/C 14 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 2 ta B) 0 ta C) 4 ta D) 6 ta 15 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) volt C) kulon 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) 2 A B) 5 A C) 4 A D) 1.8 A 17 / 25 Bitta elektron zaryadi nechaga teng ? A) 8,81*10^-19 B) 9,1*10^-31C C) 2,01*10^-19C D) 1,6*10^-19C 18 / 25 Elektr doimiysining son qiymati nechaga teng? A) 9,1*10^-31kg B) -3*10^-19 C C) 8,85*10^-12C^2/N*m^2 D) 3*10^-19 C 19 / 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 20 / 25 Elektrlanishning necha turi mavjud ? A) 3 B) 2 C) 4 D) 5 21 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Barometr C) Elektroskop D) Dinomometr 22 / 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 23 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Areometr B) Elektroskop C) Barametr D) spedometr 24 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Elektr zaryat C) Musbat zaryad D) Zaryad 25 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Ampermetr B) Areometr C) kondensator 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
