Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1007 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 Burchakli ko’chishning vaqtga nisbati qanday fizik kattalik? A) tezlanish B) burchakli tezlik C) chastota D) davr 2 / 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) 2000 C) 1786 D) 2800 3 / 25 Soatning minut mili aylanishining chastotasini toping.(Hz) A) 1/3600 B) 1/100 C) 1/7200 D) 100 4 / 25 Uzunligi 25 sm bo’lgan ipga bog’langan sharcha 5 m/s chiziqli tezlik bilan aylanmoqda. Sharning markaziga intilma tezlanishini toping. (m/s2) A) 1 B) 2 C) 100 D) 10 5 / 25 Aylanish davri bilan chiziqli tezligi orasidagi munosabat formulasini toping. A) V=S/t B) V=2¶R/T C) V=wR D) V=at 6 / 25 Aylanma tekis harakatda chiziqli tezlik bilan burchak tezlik orasidagi munosabat formulasini ko’rsating A) w=4/t B) w=2¶/T C) V=wR D) w=2¶V 7 / 25 Gravitatsion doimiy xalqaro birliklar sistemasida qanday birlik bilan aniqlanadi A) kg*m/S² B) m³/kg*s² C) N*kg D) N/m² 8 / 25 Jismning yerga tortilish kuchi …… deb ataladi A) jism og’irligi B) bosim kuchi C) reaksiya kuchi D) og’irlik kuchi 9 / 25 Zambarakdan gorizantga burchak ostida uchib chiqqan snaryad 12 sekund uchgan. Snaryad ko’tarilgan eng yuqori balandlik qancha A) 10m B) 360m C) 20m D) 180m 10 / 25 Yer sirtidagi h=2R balandlikda erkin tushish tezlanishi nimaga teng A) g/4 B) g/9 C) g/2 D) g 11 / 25 Lift a A) P=m(a-g) B) P=m(g+a) C) P=m(g-a) D) (P=mg) 12 / 25 Xalqaro birliklar sistemasida kuch birligi A) kg / s² B) kg*m²/s² C) kg*m / s² D) m / s² 13 / 25 Motosikl botiq ko’prik ustida tekis harakatlanmoqda. Ko’prikning eng quyi nuqtasiga yetganida unga qo’yilgan kuchlarning teng ta’sir etuvchisi qanday yo’nalgan bo’ladi? A) Oldinga B) Pastga C) Yuqoriga D) Orqaga 14 / 25 Gorizontal tekislikda yotgan 6 kg massali jism qanday kuch ta’sirida 1s da 2 m/s tezlikka erishadi? Jismga ta’sir etayotgan ishqalanish kuchi 4 N ga teng deb xisoblang A) 8 B) 4 C) 12 D) 16 15 / 25 1 m/s2 tezlanish bilan tushayotgan liftdagi 20 kg massali bolaning og’irligi qancha? A) 170 N B) 200 N C) 190 N D) 180 N 16 / 25 Massasi 60 kg bo’lgan jism tik yuqoriga 1 m /s2 tezlanish bilan ko’tarilayotgan bo’lsa, uning og’irligi qanday bo’ladi? A) 480 N B) 600 N C) 540 N D) 660 N 17 / 25 60 N kuch jismga 0,8 m/s2 tezlanish beradi. Qanday kuch bu jismga 2 m/s2 tezlanish beradi? A) 15 N B) 24 N C) 150 N D) 240 N 18 / 25 Jismning harakat tenglamasi x = 2 – 3 t + 2 t2 formula bilan berilgan. Bu harakat uchun tezlik tenglamasini yozing A) υ = 4 t B) υ= 4 - 3 t C) υ= - 3 + 4 t D) υ= 4 + 3 t 19 / 25 Tezligi υ=5-3 t (m/s) tenglama bilan berilgan jismning boshlangich tezligi (m/s) nimaga teng? A) 3 B) 4 C) 2 D) 5 20 / 25 Tekis tezlanuvchan harakatda tezlik va tezlanish ishoralarning munosabatini ko’rsating. 1) υ0 > 0, a>0 2) υ0 > 0, a<0 3) υ0 < 0, a<0 4) υ0<0, a>0 A) 2,4 B) 1,3 C) 1,2 D) 3,4 21 / 25 Erkin tushib harakat qilayotgan jismning tezligi har sekundda qanchaga o’zgaradi A) 5 m/s B) 15 m/s C) 10 m/s D) o’zgarmaydi 22 / 25 Balkondan boshlang’ich tezliksiz tushib ketgan jism 1 s da yerga etib kelgan bo’lsa, u qanday balandlikdan (m) tushgan? A) 5 B) 10 C) 20 D) 15 23 / 25 Boshlang’ich tezliksiz erkin tushayotgan jism 3-sekund ichida qanday masofani o’tadi? g = 10 m/s2 A) 15 m/s B) 10 m/s C) 25 m/s D) 5 m/s 24 / 25 Tezlanish formulasi qanday ifodalanadi A) p = m / v B) S = at² / 2 C) p = F / S D) a = (v - v˳)/t 25 / 25 Tekis sekinlanuvchan harakatda tezlik va tezlanish ishoralarining munosabatini ko’rsating. 1) υ0 > 0, a<0 2) υ0 = 0, a<0 3) υ0 < 0, a>0 4) υ >0, a>0 A) 2,3 B) 4 C) 3,4 D) 1,3 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