Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 432 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Elektrlanmaydi C) Manfiy D) Musbat 2 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Zaryad B) Elektr toki C) Musbat zaryad D) Tok kuchi 3 / 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 4 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 2,01*10^-19C C) 8,81*10^-19 D) 9,1*10^-31C 5 / 25 Bitta elektron massasi nechaga teng ? A) 1,6*10^-19kg B) 3,36*10^-32kg C) 8,81*10^-19kg D) 9,1*10^-31kg 6 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Dinomometr B) Barometr C) Elektroskop D) Elektrometr 7 / 25 Qarshiliklari 200 Ω va 300 Ω bo`lgan ikkita elektr lampa parallel ulanib, 240 V tarmoqqa kiritilgan. Umumiy tok kattaligini toping. A) 5 A B) 2 A C) 1.8 A D) 4 A 8 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Nuqtaviy zaryad B) Elementar zaryad C) Manfiy zaryad D) Musbat zaryad 9 / 25 Elektr sig’imining o’lchov birligi nima ? A) Farad B) amper C) Kulon D) Sekund 10 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Ionli bog’lanish B) Kovalent bog’lanish C) Qutbli bog’lanish D) Elektrolitlar 11 / 25 Faradey doimiysining son qiymatini toping ? A) 7800 C/mol B) 96500 C/mol C) 8000C/mol D) 7200 C/mol 12 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Galvonaplastina B) eletrlolez C) Galvonastegiya D) Ion bog’lanish 13 / 25 Gaz orqali elektr toki o’tish jarayoni …..deyiladi ? A) Ion bog’lanish B) Uchqun C) Gaz razryadi D) Elektroliz 14 / 25 Elektr toki bajargan ishining asosiy birligi nima? A) Volt B) amper C) Vatt sekund D) Paskal 15 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Suniy magnitlar B) Tabiy magnitlar C) Doimiy magnitlar D) Ohangrabo-temirni tortuvchi 16 / 25 Necha volt kuchlanishli elektr tarmoq odam organizmi uchun xavflihisoblanadi? A) 220 V dan yuqori B) 30 V dan yuqori C) 36 V dan yuqori D) 300 Vdan yuqori 17 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) R=I/U B) N=A/t C) I=q/t D) P=IU 18 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) ν=m/µ B) to'g'ri javob yo'q C) N=mn∆z D) m=µ/N 19 / 25 Cho’ntak fanari lampochkasidagi kuchlanish 4,5 V, tok kuchi 0,2 A bo’lsa ,1minutdaqancha elektr energiya sarflanadi? A) 60 J B) 54 J C) 50 J D) 780 J 20 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.017 B) 0.5 C) 0,4 D) 0,098 21 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) R B) J C) L D) U 22 / 25 Rezistor so’zining manosi nima ? A) Tok kuchi B) Qarshilik C) Zaryad D) Kuchlanish 23 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 1,5 V B) 220 V C) 5V D) 500 kV 24 / 25 Elekt kuchlanishining ulchov birligi nima? A) Kulon B) Sekund C) Volt D) Amper 25 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektroskop B) ampermetr C) voltmeter D) elektrometr 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 Foydali bo'lsa mamnunmiz
