Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 2-chorak Fizika choraklik 8-sinf Fizika 2-chorak InfoMaster May 5, 2021 1076 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 0 1 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 2-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Musbat C) Manfiy D) Elektrlanmaydi 2 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Manfiy C) Elektrlanuvchi D) Qattiq rezina 3 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Musbat zaryad B) Manfiy zaryad C) Nuqtaviy zaryad D) Elementar zaryad 4 / 25 Atom so’zining ma’nosi nima ? A) Elektr zaryat B) Musbat zaryad C) Zaryad D) Bo’linmas 5 / 25 Elektr doimiysining son qiymati nechaga teng? A) 3*10^-19 C B) 8,85*10^-12C^2/N*m^2 C) 9,1*10^-31kg D) -3*10^-19 C 6 / 25 Elektrlanishning necha turi mavjud ? A) 3 B) 5 C) 4 D) 2 7 / 25 Bitta elektron massasi nechaga teng ? A) 3,36*10^-32kg B) 9,1*10^-31kg C) 1,6*10^-19kg D) 8,81*10^-19kg 8 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Tok kuchi C) Zaryad D) Elektr toki 9 / 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 10 / 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*10‾⁵ N/C C) 6*10⁴ N/C D) 5*10⁵ N/C 11 / 25 bu shartli belgi qanday nomlanadi? A) O’tkazgichlarning tutashtirmasdan kesishishi B) Qo’ng’iroq C) Kalit D) Tok manbayi 12 / 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) 110 V B) 44 V C) 180 V D) 220 V 13 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryad oqimi B) Zaryadlovchi C) Tok manbayi D) To’plovchi 14 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 2,01*10^-19C C) 8,81*10^-19 D) 9,1*10^-31C 15 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) hamma javoblar to'g'ri B) yunon olimi Fales Miletskiy C) grek olimi Arximed D) yunon olimi Aristotel 16 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Voltmetr B) Areometr C) Ampermetr D) kondensator 17 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Kulon B) Beruniy C) Demokret D) Rezerfort 18 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Barametr B) spedometr C) Elektroskop D) Areometr 19 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) L B) R C) J D) U 20 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) voltmeter B) ampermetr C) elektroskop D) elektrometr 21 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,1 A B) 0,5 A C) 0.4 A D) 0,2 A 22 / 25 Tok kuchi formulasi keltirilgan javobni aniqlang? A) U=A/q B) Q=ItU C) I=q/t D) R=U/I 23 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.017 B) 0,4 C) 0.5 D) 0,098 24 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 18 Ω B) 44.4 Ω C) 20 Ω D) 44 Ω 25 / 25 Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan? A) 12 V B) 3 v C) 25 V D) 15 V 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