Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 4-chorak Fizika choraklik 8-sinf Fizika 4-chorak InfoMaster May 5, 2021 352 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 8-sinf Fizika 4-chorak Testni Shirinboyev Temurbek tayyorladi. Ma'lumotlaringizni kriting. IsmTelefon raqami 1 / 25 Rezistor so’zining manosi nima ? A) Kuchlanish B) Qarshilik C) Zaryad D) Tok kuchi 2 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 44.4 Ω B) 18 Ω C) 44 Ω D) 20 Ω 3 / 25 Elekt kuchlanishining ulchov birligi nima? A) Volt B) Kulon C) Amper D) Sekund 4 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 220 V B) 1,5 V C) 5V D) 500 kV 5 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) spedometr B) Barametr C) Areometr D) Elektroskop 6 / 25 Elektr sig’imining o’lchov birligi nima ? A) Sekund B) Kulon C) amper D) Farad 7 / 25 Elektr doimiysining son qiymati nechaga teng? A) 9,1*10^-31kg B) -3*10^-19 C C) 3*10^-19 C D) 8,85*10^-12C^2/N*m^2 8 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Voltmetr B) Areometr C) kondensator D) Ampermetr 9 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) o`zgarmaydi B) 2 marta kamayadi C) 2 marta ortadi D) 4 marta kamaydi 10 / 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) 1.8 A D) 4 A 11 / 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) 0.2 Ω C) 1 Ω D) 0.5 Ω 12 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 220 W B) 1,1 kW C) 110W D) 100 W 13 / 25 Faradey doimiysining son qiymatini toping ? A) 8000C/mol B) 7200 C/mol C) 7800 C/mol D) 96500 C/mol 14 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) O.Ryomer B) Rezirfort C) J.Uatt D) Nyuton 15 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Turli eritma B) Suvli eritma C) Ion bog’lanish D) Eletroliz 16 / 25 220 V kuchlanishda 0,25 A tok olib yonayotgan elektr lampochkadagi tokning quvvatini toping ? A) 5,5 W B) 500 W C) 55 W D) 550 W 17 / 25 Natriy (Na) atomida nechta electron bor ? A) 10 ta B) 12 ta C) 9 ta D) 11 ta 18 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Ionli bog’lanish B) Elektrolitlar C) Kovalent bog’lanish D) Qutbli bog’lanish 19 / 25 Kuch impulsini topish formulasini ko'rsating? A) F=m*a B) P=m*v C) I=F*t D) F=m*g 20 / 25 Kuchlanishni o'lchash uchun qanday asbobdan foydalaniladi? A) Dinamometr B) voltmetr C) hamma javoblar to'g'ri D) Elektroskop 21 / 25 Atom qanday zaryadlardan tuzilgan? A) proton,neytron B) to'g'ri javob yo'q C) yadrodan va manfiy zaryadlangan elektrondan D) yadro,proton 22 / 25 Yerning massasi qanchaga teng? A) 2*10^30 B) to'g'ri javob yo'q C) 5,98*10^24 D) 7,35*10^22 23 / 25 Birinchi kosmik tezlik berilganda kosmik kema yer sirtida qanday harakatlanadi? A) Parobola bo'ylab B) Aylana bo'ylab C) hamma javob to'g'ri D) Ellips bo'ylab 24 / 25 Birinchi kosmik tezlik qanchaga teng? A) 11,2 km/s B) 11,1 km/s C) 7,9 km/s D) 8,4km/s 25 / 25 Qanday kuch jismni 0,5 masofaga ko'chirilganda 100 J ish bajaradi? A) 100N B) 200 N C) 50 N D) 20 N 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 Author: InfoMaster Foydali bo'lsa mamnunmiz