Uy » Online olimpiada » Fizika olimpiada » 9-sinf Fizika olimpiada №5 Fizika olimpiada 9-sinf Fizika olimpiada №5 InfoMaster Yanvar 9, 2023 1264 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 9-sinf Fizika olimpiada №5 03.01.2023 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 Ikki nuqtaviy zaryad orasidagi masofani o’zgartirmasdan har bir zaryadning miqdorini 4 martadan orttirilsa ular orasidagi o’zaro tortishish kuchi qanday o’zgaradi? A) 8 marta ortadi B) O’zgarmaydi C) 16 marta ortadi D) 4 marta ortadi 2 / 25 Massasi 10 kg bo’lgan taxta uzunligining ¼ qismiga teng masofada tayansh tirab qo’yilgan. Taxtani muvozanatda tutib turish uchun uning kalta uchiga taxtaga perpendikulyar bo’lgan qanday kuch qo’yish lozim (N)? A) 300 B) 200 C) 100 D) 50 3 / 25 Deformatsiyalanmagan prujinani 5 sm ga cho’zish uchun A ish bajarildi, shu vaziyatdan yana 10 sm masofaga cho’zish uchun qanday ish bajariladi? A) 4A B) 9A C) 8A D) 2A 4 / 25 Elektrolizda buyumni nikellash t vaqt davom etib, buyum m massasi nikel bilan qoplandi. Elektroliz vaqtidagi tokning qiymatini toping. k – nikelning elektrokimyoviy ekvivalenti. A) m/kt B) mkt C) mk/t D) mt/k 5 / 25 Induksiyasi 25 mT bo’lgan bir jinsli magnit maydonida kuch chiziqlariga perpendikulyar ravishda uzunligi 40 sm va massasi 5 g bo’lgan elektr liniyasining qismi joylashgan. Agar liniyadagi tok 3 A ekanligi ma’lum bo’lsa bu qism magnit maydoni ta’sirida qanday tezlanishga (?/?²) ega bo’lib qoladi? A) 12 B) 6 C) 15 D) 3 6 / 25 A) A B) D C) C D) B 7 / 25 A) D B) B C) A D) C 8 / 25 A) C B) D C) A D) B 9 / 25 A) D B) C C) B D) A 10 / 25 A) A B) C C) B D) D 11 / 25 A) C B) D C) A D) B 12 / 25 A) B B) D C) A D) C 13 / 25 A) B B) D C) A D) C 14 / 25 A) C B) D C) B D) A 15 / 25 A) B B) A C) C D) D 16 / 25 A) B B) C C) D D) A 17 / 25 A) A B) C C) D D) B 18 / 25 A) D B) C C) A D) B 19 / 25 A) A B) D C) C D) B 20 / 25 A) D B) A C) B D) C 21 / 25 A) A B) B C) C D) D 22 / 25 A) D B) B C) A D) C 23 / 25 A) A B) B C) D D) C 24 / 25 A) B B) C C) D D) A 25 / 25 A) D B) C C) A D) B 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
