8-sinf Fizika 3-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 3-chorak ga fikr bildirilmagan. 117 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektrometr B) ampermetr C) elektroskop D) voltmeter 2 / 25 Bitta elektron zaryadi nechaga teng ? A) 8,81*10^-19 B) 1,6*10^-19C C) 9,1*10^-31C D) 2,01*10^-19C 3 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektrometr B) elektroskop C) potensiyometr D) rezistor 4 / 25 Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating? A) 6 A B) 0,5 A C) 0,4 A D) 0,1 A 5 / 25 Bitta elektron massasi nechaga teng ? A) 8,81*10^-19kg B) 9,1*10^-31kg C) 3,36*10^-32kg D) 1,6*10^-19kg 6 / 25 Elekt kuchlanishining ulchov birligi nima? A) Volt B) Sekund C) Kulon D) Amper 7 / 25 Bug’ mashinasini kim kashf etgan ? A) Kulon B) Amper C) Jems Uatt D) Volta 8 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Areometr C) Ampermetr D) Voltmetr 9 / 25 Tok kuchining o'lchov birligi nima? A) Kulon B) Amper C) Volt D) Joul 10 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Musbat zaryad C) Elementar zaryad D) Nuqtaviy zaryad 11 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Elektr toki B) Musbat zaryad C) Tok kuchi D) Zaryad 12 / 25 Elektr sig’imining o’lchov birligi nima ? A) Farad B) Sekund C) Kulon D) amper 13 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 220 J B) 15 J C) 20 J D) 155 J 14 / 25 Elektr doimiysining son qiymati nechaga teng? A) -3*10^-19 C B) 3*10^-19 C C) 8,85*10^-12C^2/N*m^2 D) 9,1*10^-31kg 15 / 25 Elektr zaryadining o’lchov birligi nima ? A) kulon B) Joul C) volt D) Amper 16 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) o`zgarmaydi B) 4 marta kamaydi C) 2 marta ortadi D) 2 marta kamayadi 17 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5*10‾⁵ N/C B) 5*10⁵ N/C C) 5,1*10⁶ N/C D) 6*10⁴ N/C 18 / 25 Akkumulator so’zining ma’nosi nima ? A) Tok manbayi B) To’plovchi C) Zaryadlovchi D) Zaryad oqimi 19 / 25 Faradey doimiysining son qiymatini toping ? A) 96500 C/mol B) 7800 C/mol C) 8000C/mol D) 7200 C/mol 20 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Manfiy B) to'g'ri javob yo'q C) Elektrlanmaydi D) Musbat 21 / 25 bu shartli belgi qanday nomlanadi? A) Kalit B) Qo’ng’iroq C) Tok manbayi D) O’tkazgichlarning tutashtirmasdan kesishishi 22 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Aristotel B) hamma javoblar to'g'ri C) yunon olimi Fales Miletskiy D) grek olimi Arximed 23 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 6 ta B) 2 ta C) 4 ta D) 0 ta 24 / 25 Natriy (Na) atomida nechta electron bor ? A) 9 ta B) 11 ta C) 12 ta D) 10 ta 25 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Turli eritma B) Suvli eritma C) Ion bog’lanish D) Eletroliz 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 Fizika choraklik
