Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 1-chorak Fizika choraklik 8-sinf Fizika 1-chorak InfoMaster May 5, 2021 99 Ko'rishlar 2 izohlar SaqlashSaqlanganOlib tashlandi 1 0 8-sinf Fizika 1-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5,1*10⁶ N/C B) 5*10⁵ N/C C) 6*10⁴ N/C D) 5*10‾⁵ N/C 2 / 25 Atom so’zining ma’nosi nima ? A) Zaryad B) Musbat zaryad C) Bo’linmas D) Elektr zaryat 3 / 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) 4 A C) 1.8 A D) 5 A 4 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 2 ta B) 4 ta C) 0 ta D) 6 ta 5 / 25 Elektr sig’imining o’lchov birligi nima ? A) Kulon B) Sekund C) Farad D) amper 6 / 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) 5,4*10‾⁴ N C) 270 N D) 5*10‾⁸ N 7 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Elektr toki B) Zaryad C) Musbat zaryad D) Tok kuchi 8 / 25 Bitta elektron massasi nechaga teng ? A) 9,1*10^-31kg B) 8,81*10^-19kg C) 1,6*10^-19kg D) 3,36*10^-32kg 9 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Areometr B) kondensator C) Ampermetr D) Voltmetr 10 / 25 Elektr zaryadining o’lchov birligi nima ? A) kulon B) Joul C) Amper D) volt 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) 0.2 Ω B) 0.5 Ω C) 0.4 Ω D) 1 Ω 12 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Musbat zaryad B) Manfiy zaryad C) Nuqtaviy zaryad D) Elementar zaryad 13 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Kulon B) Demokret C) Beruniy D) Rezerfort 14 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Elektroskop B) Areometr C) spedometr D) Barametr 15 / 25 Elektr doimiysining son qiymati nechaga teng? A) -3*10^-19 C B) 9,1*10^-31kg C) 8,85*10^-12C^2/N*m^2 D) 3*10^-19 C 16 / 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) 44 V B) 110 V C) 180 V D) 220 V 17 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 4 marta kamaydi B) 2 marta ortadi C) 2 marta kamayadi D) o`zgarmaydi 18 / 25 Qahrabo so’zining ma’nosi nima ? A) Qattiq rezina B) Somon tortuvchi C) Elektrlanuvchi D) Manfiy 19 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Barometr C) Elektroskop D) Dinomometr 20 / 25 Elektrlanishning necha turi mavjud ? A) 2 B) 5 C) 4 D) 3 21 / 25 bu shartli belgi qanday nomlanadi? A) O’tkazgichlarning tutashtirmasdan kesishishi B) Qo’ng’iroq C) Kalit D) Tok manbayi 22 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryadlovchi B) Tok manbayi C) Zaryad oqimi D) To’plovchi 23 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Elektrlanmaydi B) Musbat C) Manfiy D) to'g'ri javob yo'q 24 / 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 25 / 25 Bitta elektron zaryadi nechaga teng ? A) 2,01*10^-19C B) 8,81*10^-19 C) 9,1*10^-31C D) 1,6*10^-19C 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