8-sinf Fizika 4-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 4-chorak ga fikr bildirilmagan. 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 4-chorak Testni Shirinboyev Temurbek tayyorladi. Ma'lumotlaringizni kriting. IsmTelefon raqami 1 / 25 Bug’ mashinasini kim kashf etgan ? A) Kulon B) Volta C) Jems Uatt D) Amper 2 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Doimiy magnitlar B) Suniy magnitlar C) Ohangrabo-temirni tortuvchi D) Tabiy magnitlar 3 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) P=IU B) I=q/t C) N=A/t D) R=I/U 4 / 25 Faradey doimiysining son qiymatini toping ? A) 8000C/mol B) 96500 C/mol C) 7200 C/mol D) 7800 C/mol 5 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) m=µ/N B) ν=m/µ C) N=mn∆z D) to'g'ri javob yo'q 6 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Galvonastegiya B) eletrlolez C) Galvonaplastina D) Ion bog’lanish 7 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) J.Uatt B) Nyuton C) O.Ryomer D) Rezirfort 8 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) L B) J C) R D) U 9 / 25 Uzunligi 1 m, ko’ndalang kesimining yuzi 0,4 mm2 bo’lgan nikelin simning uchlaridagi kuchlanish 2 V gat eng. Shu elektr zanjir orqali o’tayotgan tok kuchini aniqlang? A) 4 A B) 9 A C) 2 A D) 0,8 A 10 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0,098 B) 0.5 C) 0,4 D) 0.017 11 / 25 Elekt kuchlanishining ulchov birligi nima? A) Kulon B) Amper C) Volt D) Sekund 12 / 25 Zaryadlar qanday o'zaro ta'sirlashadi? A) hamma zaryadlar tortiladi va itarishadi B) to'g'ri javob yo'q C) bir xil ishorali zaryadlar itarishadi, har xil ishoraki zaryadlar tortiladi D) hamma zaryadlar tortiladi 13 / 25 Yerning massasi qanchaga teng? A) 5,98*10^24 B) to'g'ri javob yo'q C) 7,35*10^22 D) 2*10^30 14 / 25 Birinchi kosmik tezlik qanchaga teng? A) 8,4km/s B) 11,2 km/s C) 11,1 km/s D) 7,9 km/s 15 / 25 Zaryadlangan jism atrofida nima hosil bo'ladi? A) magnit maydoni B) hamma zaryadlar tortiladi C) hech nima hosil bo'lmaydi D) Elektr maydoni 16 / 25 Kosmik kemada kosmonavt Y. A. Gagarin birinchi uchganda qancha vaqt parvoz etdi? A) 108 min. B) A, B javob to'g'ri. C) 1 soat 53 min D) uchmagan 17 / 25 Kuch impulsini topish formulasini ko'rsating? A) P=m*v B) I=F*t C) F=m*a D) F=m*g 18 / 25 Atom qanday zaryadlardan tuzilgan? A) yadro,proton B) to'g'ri javob yo'q C) yadrodan va manfiy zaryadlangan elektrondan D) proton,neytron 19 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) spedometr B) Elektroskop C) Barametr D) Areometr 20 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Musbat B) Manfiy C) to'g'ri javob yo'q D) Elektrlanmaydi 21 / 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) 220 V B) 110 V C) 44 V D) 180 V 22 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Ampermetr C) Areometr D) Voltmetr 23 / 25 Bitta elektron zaryadi nechaga teng ? A) 9,1*10^-31C B) 8,81*10^-19 C) 1,6*10^-19C D) 2,01*10^-19C 24 / 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 25 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 6*10⁴ N/C B) 5*10‾⁵ N/C C) 5*10⁵ N/C D) 5,1*10⁶ N/C 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
