Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 1-chorak Fizika choraklik 8-sinf Fizika 1-chorak InfoMaster May 5, 2021 894 Ko'rishlar 2 izohlar SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 1-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Elektr sig’imining o’lchov birligi nima ? A) Sekund B) amper C) Kulon D) Farad 2 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) hamma javoblar to'g'ri B) yunon olimi Aristotel C) grek olimi Arximed D) yunon olimi Fales Miletskiy 3 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Tok kuchi C) Zaryad D) Elektr toki 4 / 25 bu shartli belgi qanday nomlanadi? A) Tok manbayi B) Qo’ng’iroq C) Kalit D) O’tkazgichlarning tutashtirmasdan kesishishi 5 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Rezerfort B) Kulon C) Demokret D) Beruniy 6 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryad oqimi B) Zaryadlovchi C) To’plovchi D) Tok manbayi 7 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Barometr B) Dinomometr C) Elektroskop D) Elektrometr 8 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Musbat C) Manfiy D) Elektrlanmaydi 9 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 9,1*10^-31C C) 8,81*10^-19 D) 2,01*10^-19C 10 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) spedometr B) Areometr C) Barametr D) Elektroskop 11 / 25 Elektrlanishning necha turi mavjud ? A) 4 B) 2 C) 3 D) 5 12 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 0 ta B) 6 ta C) 2 ta D) 4 ta 13 / 25 Elektr zaryadining o’lchov birligi nima ? A) volt B) kulon C) Amper D) Joul 14 / 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) 5*10‾⁸ N B) 2*10‾⁸ N C) 270 N D) 5,4*10‾⁴ N 15 / 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 16 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Elektr zaryat C) Musbat zaryad D) Zaryad 17 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5*10⁵ N/C B) 6*10⁴ N/C C) 5,1*10⁶ N/C D) 5*10‾⁵ N/C 18 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Musbat zaryad B) Elementar zaryad C) Manfiy zaryad D) Nuqtaviy zaryad 19 / 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) 180 V B) 220 V C) 44 V D) 110 V 20 / 25 Qahrabo so’zining ma’nosi nima ? A) Elektrlanuvchi B) Somon tortuvchi C) Manfiy D) Qattiq rezina 21 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) o`zgarmaydi B) 2 marta ortadi C) 4 marta kamaydi D) 2 marta kamayadi 22 / 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 23 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Areometr C) Ampermetr D) Voltmetr 24 / 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 25 / 25 Qarshiliklari 200 Ω va 300 Ω bo`lgan ikkita elektr lampa parallel ulanib, 240 V tarmoqqa kiritilgan. Umumiy tok kattaligini toping. A) 5 A B) 2 A C) 1.8 A D) 4 A 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