Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 1401 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 5 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 2 marta kamayadi B) 2 marta ortadi C) 4 marta kamaydi D) o`zgarmaydi 2 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 6 ta B) 4 ta C) 2 ta D) 0 ta 3 / 25 bu shartli belgi qanday nomlanadi? A) Tok manbayi B) O’tkazgichlarning tutashtirmasdan kesishishi C) Kalit D) Qo’ng’iroq 4 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Demokret B) Kulon C) Rezerfort D) Beruniy 5 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Barometr B) Elektroskop C) Elektrometr D) Dinomometr 6 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Fales Miletskiy B) hamma javoblar to'g'ri C) grek olimi Arximed D) yunon olimi Aristotel 7 / 25 Atom so’zining ma’nosi nima ? A) Zaryad B) Elektr zaryat C) Musbat zaryad D) Bo’linmas 8 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) U=A|q B) E=U/d C) I=q/t D) F=kq/r^2 9 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,2 A B) 0.4 A C) 0,5 A D) 0,1 A 10 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.5 B) 0,098 C) 0,4 D) 0.017 11 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) rezistor B) elektrometr C) potensiyometr D) elektroskop 12 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Elektroskop B) Voltmetr C) Elektrometr D) Ampermetr 13 / 25 Elekt kuchlanishining ulchov birligi nima? A) Volt B) Amper C) Kulon D) Sekund 14 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 220 V B) 500 kV C) 5V D) 1,5 V 15 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Tok kuchi B) qisqa tutashuv C) Elektr toki D) Zaryadlar 16 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Elektrolitlar B) Qutbli bog’lanish C) Kovalent bog’lanish D) Ionli bog’lanish 17 / 25 1,5 soat davom etgan elektrolizda katodda 15 mg nikel yig’iladi.Elektroliz vaqtida eletrolitdan o’tagan tok kuchini toping ? A) 9mA B) 35,5 mA C) 25 mA D) 7 mA 18 / 25 1Vatt.soat necha Jaulga teng ? A) 360 J B) 5600 J C) 3600 J D) 5000 J 19 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 220 W B) 1,1 kW C) 110W D) 100 W 20 / 25 Bug’ mashinasini kim kashf etgan ? A) Jems Uatt B) Kulon C) Amper D) Volta 21 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Galvonastegiya B) Galvonaplastina C) eletrlolez D) Ion bog’lanish 22 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Eletroliz B) Turli eritma C) Suvli eritma D) Ion bog’lanish 23 / 25 Gaz orqali elektr toki o’tish jarayoni …..deyiladi ? A) Ion bog’lanish B) Gaz razryadi C) Elektroliz D) Uchqun 24 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) ν=m/µ B) m=µ/N C) to'g'ri javob yo'q D) N=mn∆z 25 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) P=IU B) I=q/t C) R=I/U D) N=A/t 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
