Uy » Online olimpiada » Fizika olimpiada » 9-sinf Fizika olimpiada №5 Fizika olimpiada 9-sinf Fizika olimpiada №5 InfoMaster Yanvar 9, 2023 1154 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 Massasi 4 kg bo’lgan jismga 4 ta kuch rasmda ko’rsatilgandek ta’sir qilmoqda. Harakat boshidan 9 s vaqt ichida jismning impulsi (kg*m/s) qanchaga o’zgaradi? A) 80 B) 85 C) 95 D) 90 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) 60 B) 50.4 C) 45.4 D) 65.5 3 / 25 Krilovning mashxur masaliga ko’ra 3 jonzotning o’rtasida qolgan aravacha joyidan qo’zg’almaydi. Bu hodisani fizikaning qaysi qonuni orqali izohlash mumkin? A) Nyutonning 3 – qonuni B) Butun olam tortishish qonuni C) Nyutonning 1 – qonuni D) Nyutonning 2 – qonuni 4 / 25 Harakatlanayotgan zaryadli zarracha bir jinsli magnit maydoniga induksiya chiziqlari bo’ylab uchib kirdi. Uning shu maydondagi trayektoriyasining shakli qanday bo’ladi? A) Vintsimon B) Spiralsimon C) To’g’ri chiziq D) Aylana 5 / 25 Sig’imi 25 pF bo’lgan kondensatorning kuchlanishi 25 V ekanligi ma’lum bo’lsa unda to’plangan zaryad miqdorini (pC) toping. A) 1 B) 25 C) 5 D) 625 6 / 25 A) A B) C C) D D) B 7 / 25 A) B B) C C) A D) D 8 / 25 A) C B) A C) B D) D 9 / 25 A) C B) D C) A D) B 10 / 25 A) A B) C C) D D) B 11 / 25 A) C B) A C) D D) B 12 / 25 A) C B) B C) A D) D 13 / 25 A) D B) B C) A D) C 14 / 25 A) B B) D C) A D) C 15 / 25 A) A B) D C) C D) B 16 / 25 A) A B) B C) C D) D 17 / 25 A) B B) D C) C D) A 18 / 25 A) D B) C C) A D) B 19 / 25 A) C B) D C) A D) B 20 / 25 A) B B) A C) D D) C 21 / 25 A) D B) C C) A D) B 22 / 25 A) B B) C C) D D) A 23 / 25 A) B B) A C) C D) D 24 / 25 A) C B) D C) A D) B 25 / 25 A) D B) A C) B D) C 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz