Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1175 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 2 2 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 Soatning sekund mili burchakli tezligini toping. (rad/s) A) π/10 B) π/2600 C) π/1800 D) π/30 2 / 25 Burchakli ko’chishning vaqtga nisbati qanday fizik kattalik? A) chastota B) tezlanish C) burchakli tezlik D) davr 3 / 25 Velosiped g’ildiragining o’qidan eng uzoq nuqtasi 0,02 s davomida 20 km yo’lni bosib o’tdi. Velosipedning tezligini toping A) 3,6 km/soat B) 0,36 km/soat C) 4 km/soat D) 36 km/soat 4 / 25 Aylanma tekis harakatda aylanish davri va chastotasi bog’lanishi formulasini ko’rsating A) T=t/N B) T=1/v C) T=2¶R/V D) t=T*N 5 / 25 Jism harakat tenglamasi x=5+3t–t2 formula bilan berilgan. Jismning boshlang’ich koordinatasi nimaga teng? A) 3 m B) 9 m C) 1 m D) 5 m 6 / 25 Balkondan boshlang’ich tezliksiz tushib ketgan jism 1 s da yerga etib kelgan bo’lsa, u qanday balandlikdan (m) tushgan? A) 15 B) 10 C) 5 D) 20 7 / 25 Erkin tushish deb qaysi harakatga aytiladi A) jismga hech qanday kuch ta’sir qilmagandagi harakatiga B) jismning havosiz joyda faqat yerning tortish ta’sridagi harakatiga C) qo’ldan qo’yib yuborgan jism harakatiga D) xar qanday harakatga 8 / 25 Tekis tezlanuvchan harakat qilayotgan “Matiz” 10 s davomida tezligini 54 km / soat dan 100 km / soat ga oshirdi. «Matiz»ning tezlanishini toping A) 13 m/s² B) 2,5 m/s² C) 3 m/s² D) 15 m/s² 9 / 25 Tezlanishning o’lchov birligini ko’rsating A) s/ m² B) m/s C) m/s² D) m²/s 10 / 25 Jismning harakat tenglamasi x = 2 – 3 t + 2 t2 formula bilan berilgan. Bu harakat uchun tezlik tenglamasini yozing A) υ= 4 + 3 t B) υ = 4 t C) υ= - 3 + 4 t D) υ= 4 - 3 t 11 / 25 Jism yerdan 35 m/s tezlik bilan tik yuqoriga otildi. U yerga necha sekunddan so’ng tushadi? A) 7 B) 5 C) 3 D) 9 12 / 25 Tezlanish formulasi qanday ifodalanadi A) a = (v - v˳)/t B) S = at² / 2 C) p = F / S D) p = m / v 13 / 25 Boshlang’ich tezliksiz erkin tushayotgan jism 3-sekund ichida qanday masofani o’tadi? g = 10 m/s2 A) 25 m/s B) 5 m/s C) 10 m/s D) 15 m/s 14 / 25 Erkin tushayotgan jism ikkinchi sekundda qanday masofani (m) o’tadi? A) 25 B) 35 C) 5 D) 15 15 / 25 Nyutonning 2-qonuni formulasini ko’rsating A) a = 2s/ t² B) a = v² /R C) a = F / m D) a = v/t 16 / 25 Nyutonning 3 qonuni formulasi qaysi ifodada to’g’ri ko’rsatilgan? A) F = mv²/ R B) F1 =- F2 C) F = - k x D) F = mg 17 / 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) 1 m/s² B) 0,8 m/s² C) 0 D) 2 m/s² 18 / 25 Suv quyilgan idish lift kabinasiga joylashtirilgan. Agar lift tezlanish bilan yuqoriga harakatlansa, suvning idish tubiga bosimi qanday o’zgaradi? A) Kamayadi B) Ortadi C) Ortishi xam, kamayishi xam mumkin D) O’zgarmaydi 19 / 25 Yerning tortishish kuchi ta’sirida jismning yer atrofida aylana bo’ylab, harakatlanishida erishtiradigan tezlik ………. deyiladi A) 2-kosmik tezlik B) notekis tezlik C) 3-kosmik tezlik D) 1-kosmik tezlik 20 / 25 Yer sirtidagi h=2R balandlikda erkin tushish tezlanishi nimaga teng A) g/4 B) g/2 C) g/9 D) g 21 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish vaqti qanday o’zgaradi A) o’zgarmaydi B) 4 martta ortadi C) 2 marta kamayadi D) 2 marta ortadi 22 / 25 Ikki jism bir biriga F kuchi bilan tortilmoqda. Agar birining massasi n marta kamaytirilsa ular qanday kuch bilan tortiladi A) F(n+1) B) F/n C) F*n D) F(n-1) 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/9 C) F/2 D) F/16 24 / 25 Gravitatsion doimiy xalqaro birliklar sistemasida qanday birlik bilan aniqlanadi A) m³/kg*s² B) N/m² C) N*kg D) kg*m/S² 25 / 25 Faqat butun olam tortishish kuchlari ta’sirida erkin harakat qilayotgan xar qanday jism ......... xolatida bo’ladi A) vaznsizlik B) turg’unmas muvozanat C) turg’un muvozanat D) o’ta yuklanish 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