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