Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1006 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 Nyutonning 3 qonuni formulasi qaysi ifodada to’g’ri ko’rsatilgan? A) F = mv²/ R B) F = mg C) F = - k x D) F1 =- F2 2 / 25 Massasi 4 kg bo’lgan jism biror kuch ta’siri ostida 2 m/s2 tezlanish oldi. Shunday kuch ta’siri ostida massasi 10 kg bo’lgan jism qanday tezlanish oladi? A) 0,8 m/s² B) 0 C) 2 m/s² D) 1 m/s² 3 / 25 Massasi m = 10 kg bo’lgan jismga 25 N kuch ta’sir qilmoqda. Shu kuch ta’sirida u qanday tezlanish bilan harakat qiladi? A) 6 m / s ² B) 2,5 m / s² C) 3 m / s² D) 1 m / s² 4 / 25 Soatning sekund mili burchakli tezligini toping. (rad/s) A) π/10 B) π/2600 C) π/30 D) π/1800 5 / 25 Soatning vaqt mili burchakli tezligini toping. (rad/s) A) π/1800 B) π/2600 C) π/30 D) π/10 6 / 25 Aylanish davri bilan chiziqli tezligi orasidagi munosabat formulasini toping. A) V=at B) V=2¶R/T C) V=wR D) V=S/t 7 / 25 Aylanma tekis harakatda aylanish davri va chastotasi bog’lanishi formulasini ko’rsating A) T=1/v B) T=2¶R/V C) t=T*N D) T=t/N 8 / 25 Velosiped raridusi 25 m bo’lgan aylanma yo’lda 10 m/s tezlik bilan tekis harakatlanmoqda. Uning markazga intilma tezlanishini toping. (m/s²) A) 2 B) 5 C) 4 D) 3 9 / 25 Burchakli ko’chishning vaqtga nisbati qanday fizik kattalik? A) burchakli tezlik B) chastota C) tezlanish D) davr 10 / 25 Avtomabil 90 km/soat tezlik bilan tekis harakatlanmoqda. Agar avtomobil g’ildiragining raidusi 35 sm bo’lsa, g’ildirak markazidan shuncha masofa uzoqlikdagi nuqtasining markaziga intilma tezlanishini toping. (m/s2) A) 50 B) 2800 C) 2000 D) 1786 11 / 25 Aylanma tekis harakatda chiziqli tezlik bilan burchak tezlik orasidagi munosabat formulasini ko’rsating A) w=4/t B) V=wR C) w=2¶V D) w=2¶/T 12 / 25 0,1 s davomida g’ildirak 1 chapga buriladi. Uning o’qidan 5sm uzoqlikdagi nuqtasining chiziqli tezligini toping A) 5 m/s B) 10m/s C) 50m/s D) 0,5 m/s 13 / 25 m/s2 tezlanish bilan to’g’ri chiziq bo’ylab harakatlanayotgan jismning holatidan boshlab birinchi sekunda qanday masofani (m) o’tadi? A) 8 B) 6 C) 4 D) 7 14 / 25 Erkin tushib harakat qilayotgan jismning tezligi har sekundda qanchaga o’zgaradi A) 5 m/s B) o’zgarmaydi C) 10 m/s D) 15 m/s 15 / 25 Avtomobil 5 m/s2 tezlanish bilan tinch holatdan harakat boshladi. U 4s da necha metr yo’l o’tadi? A) 40 B) 20 C) 30 D) 10 16 / 25 Jism harakat tenglamasi x=5+3t–t2 formula bilan berilgan. Jismning boshlang’ich koordinatasi nimaga teng? A) 1 m B) 3 m C) 5 m D) 9 m 17 / 25 Joyidan qo’zg’algan jism 0,3 m/s2 tezlanish bilan harakat qilib, qancha vaqtda 9 m/s tezlikka erishadi? A) 30 s B) 25 s C) 15 s D) 20 s 18 / 25 Jism 20 m/s tezlik bilan tik yuqoriga otildi. Jism necha sekund eng baland nuqtasigacha ko’tariladi? g = 10 m/s2 A) 4 c B) 2 c C) 3 c D) 1 c 19 / 25 Yer sirtidagi h=2R balandlikda erkin tushish tezlanishi nimaga teng A) g B) g/4 C) g/9 D) g/2 20 / 25 Faqat butun olam tortishish kuchlari ta’sirida erkin harakat qilayotgan xar qanday jism ......... xolatida bo’ladi A) turg’unmas muvozanat B) turg’un muvozanat C) o’ta yuklanish D) vaznsizlik 21 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish vaqti qanday o’zgaradi A) o’zgarmaydi B) 2 marta kamayadi C) 2 marta ortadi D) 4 martta ortadi 22 / 25 Gravitatsion doimiy xalqaro birliklar sistemasida qanday birlik bilan aniqlanadi A) N*kg B) N/m² C) kg*m/S² D) m³/kg*s² 23 / 25 Yer sirtidagi jism yerga F kuch bilan tortilmoqda. Yer sirtidan h=2R balandlikka ko’tarilsa yerga qanday kuch bilan tortiladi? R-Ep radus A) F/4 B) F/16 C) F/2 D) F/9 24 / 25 Jismning yerga tortilish kuchi …… deb ataladi A) reaksiya kuchi B) jism og’irligi C) og’irlik kuchi D) bosim kuchi 25 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish uzoqligi qanday o’zgaradi A) 2 marta ortadi B) o’zgarmaydi C) 4 martta ortadi D) 2 marta kamayadi 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