Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 4-chorak Fizika choraklik 8-sinf Fizika 4-chorak InfoMaster May 5, 2021 474 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 3 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 4-chorak Testni Shirinboyev Temurbek tayyorladi. Ma'lumotlaringizni kriting. IsmTelefon raqami 1 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Kulon C) Demokret D) Rezerfort 2 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 9,1*10^-31C C) 2,01*10^-19C D) 8,81*10^-19 3 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Barometr C) Dinomometr D) Elektroskop 4 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Tok manbayi C) Zaryad oqimi D) Zaryadlovchi 5 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Tok kuchi B) Zaryad C) Musbat zaryad D) Elektr toki 6 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Musbat zaryad C) Nuqtaviy zaryad D) Elementar zaryad 7 / 25 Yerning massasi qanchaga teng? A) 2*10^30 B) to'g'ri javob yo'q C) 5,98*10^24 D) 7,35*10^22 8 / 25 Trubalarda va ariqlarda tor joyida suvning bosimi qanday bo'ladi? A) Hamma joyida bir xil. B) teng C) Kichik D) katta 9 / 25 Quyidagi formulalardan qaysi biri kuch momentini formulasi. A) v=s/t B) M=FL C) M=F/L D) F=mg 10 / 25 Jism impulsi birligini ko'rsating A) N*S B) m/s^2 C) kg*m/s D) kg 11 / 25 Tok kuchining o'lchov birligi nima? A) Kulon B) Volt C) Amper D) Joul 12 / 25 Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan? A) 15 V B) 25 V C) 12 V D) 3 v 13 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 15 C B) 10 C C) 12 C D) 24 C 14 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) potensiyometr B) rezistor C) elektroskop D) elektrometr 15 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 1,5 V B) 500 kV C) 5V D) 220 V 16 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 15 J B) 220 J C) 155 J D) 20 J 17 / 25 Gaz orqali elektr toki o’tish jarayoni …..deyiladi ? A) Uchqun B) Gaz razryadi C) Elektroliz D) Ion bog’lanish 18 / 25 1,5 soat davom etgan elektrolizda katodda 15 mg nikel yig’iladi.Elektroliz vaqtida eletrolitdan o’tagan tok kuchini toping ? A) 9mA B) 25 mA C) 7 mA D) 35,5 mA 19 / 25 Cho’ntak fanari lampochkasidagi kuchlanish 4,5 V, tok kuchi 0,2 A bo’lsa ,1minutdaqancha elektr energiya sarflanadi? A) 780 J B) 54 J C) 60 J D) 50 J 20 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) J.Uatt B) O.Ryomer C) Nyuton D) Rezirfort 21 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Tok kuchi B) Zaryadlar C) Elektr toki D) qisqa tutashuv 22 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 1,1 kW B) 110W C) 220 W D) 100 W 23 / 25 Natriy (Na) atomida nechta electron bor ? A) 11 ta B) 12 ta C) 9 ta D) 10 ta 24 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) Q=I^2RT B) A=UIT C) J=q/t D) R=UI 25 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Suvli eritma B) Turli eritma C) Eletroliz D) Ion bog’lanish 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