Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 1277 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 5 9 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Tok o’tayotgan o’tkazgich atrofida magnit maydon bor ekanligini ko’rsatgan tajriba qaysi olim nomi bilanbog’liq ? A) Volta B) Ersted C) Amper D) Joul 2 / 25 Bug’ mashinasini kim kashf etgan ? A) Kulon B) Amper C) Jems Uatt D) Volta 3 / 25 220 V kuchlanishda 0,25 A tok olib yonayotgan elektr lampochkadagi tokning quvvatini toping ? A) 550 W B) 5,5 W C) 55 W D) 500 W 4 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) to'g'ri javob yo'q B) N=mn∆z C) m=µ/N D) ν=m/µ 5 / 25 Natriy (Na) atomida nechta electron bor ? A) 11 ta B) 9 ta C) 10 ta D) 12 ta 6 / 25 Gaz orqali elektr toki o’tish jarayoni …..deyiladi ? A) Gaz razryadi B) Uchqun C) Ion bog’lanish D) Elektroliz 7 / 25 1Vatt.soat necha Jaulga teng ? A) 3600 J B) 360 J C) 5600 J D) 5000 J 8 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Elektrolitlar B) Qutbli bog’lanish C) Ionli bog’lanish D) Kovalent bog’lanish 9 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Turli eritma B) Ion bog’lanish C) Eletroliz D) Suvli eritma 10 / 25 Tok kuchining o'lchov birligi nima? A) Joul B) Volt C) Amper D) Kulon 11 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 20 Ω B) 18 Ω C) 44 Ω D) 44.4 Ω 12 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 220 V B) 500 kV C) 1,5 V D) 5V 13 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektroskop B) voltmeter C) elektrometr D) ampermetr 14 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Rezerfort C) Demokret D) Kulon 15 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektroskop B) Barometr C) Dinomometr D) Elektrometr 16 / 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 17 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Tok manbayi C) Zaryadlovchi D) Zaryad oqimi 18 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Elektrlanmaydi B) Musbat C) to'g'ri javob yo'q D) Manfiy 19 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Areometr B) Ampermetr C) kondensator D) Voltmetr 20 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 2 ta B) 0 ta C) 6 ta D) 4 ta 21 / 25 Elektr sig’imining o’lchov birligi nima ? A) Kulon B) amper C) Farad D) Sekund 22 / 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 23 / 25 Elektrlanishning necha turi mavjud ? A) 3 B) 4 C) 2 D) 5 24 / 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) 270 N C) 5,4*10‾⁴ N D) 5*10‾⁸ N 25 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) kulon C) volt D) Amper 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
