Uy » Online olimpiada » Fizika olimpiada » 9-sinf Fizika olimpiada №5 Fizika olimpiada 9-sinf Fizika olimpiada №5 InfoMaster Yanvar 9, 2023 1141 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 0 1 12345678910111213141516171819202122232425 9-sinf Fizika olimpiada №5 03.01.2023 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 Elektr maydon kuchlanganligi 600 kV/m bo’lgan bir jinsli maydonga kiritilgan +2nC nuqtaviy zaryadga maydon tomonidan ta’sir etuvchi kuchning qiymati necha mN ga teng? A) 12 B) 1200 C) 120 D) 1,2 2 / 25 Avtomobil tekis tezlanuvchan harakatni boshlab tezligi 70 km/soatga yetganida u manzilgacha bo’lgan yo’lning 1/3 qismini bosib o’tdi. Qolgan yo’lning birinchi yarmida shu tezlik bilan, ikkinchi yarmida esa 60 km/soat tezlik bilan tekis harakatlandi. Avtomobil 2,5 soat harakatlangan bo’lsa, uning butun harakati davomidagi o’rtacha tezligini toping (km/soat) A) 65.5 B) 60 C) 45.4 D) 50.4 3 / 25 Jism 80 m balandlikdan erkin tushmoqda. Harakatning oxirgi sekundida qanday masofa (m) o’tadi? ? = 10 ?/?² A) 45 B) 35 C) 40 D) 50 4 / 25 Qaysi qonuning amaliy ko’rinishi chizmada berilmoqda? A) Nyutonning 3– qonuni B) Nyutonning 1 – qonuni C) Guk qonuni D) Nyutonning 2 – qonuni 5 / 25 Nuqtaviy zaryaddan 3 sm masofadagi nuqtaning maydon kuchlanganligi 70 kV/m ga teng va nuqtaviy zaryad tomon yo’nalgan bo’lsa, shu zaryadni (nC) toping. A) -7 B) +70 C) -70 D) +7 6 / 25 A) A B) C C) B D) D 7 / 25 A) B B) D C) C D) A 8 / 25 A) D B) C C) B D) A 9 / 25 A) A B) B C) C D) D 10 / 25 A) D B) A C) B D) C 11 / 25 A) C B) D C) A D) B 12 / 25 A) D B) A C) B D) C 13 / 25 A) B B) D C) A D) C 14 / 25 A) C B) B C) D D) A 15 / 25 A) B B) A C) D D) C 16 / 25 A) B B) C C) D D) A 17 / 25 A) B B) C C) A D) D 18 / 25 A) B B) C C) D D) A 19 / 25 A) A B) B C) D D) C 20 / 25 A) C B) B C) A D) D 21 / 25 A) C B) D C) B D) A 22 / 25 A) A B) B C) D D) C 23 / 25 A) B B) A C) D D) C 24 / 25 A) B B) A C) C D) D 25 / 25 A) B B) C C) A D) D 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
