Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1020 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 Suv quyilgan idish lift kabinasiga joylashtirilgan. Agar lift tezlanish bilan yuqoriga harakatlansa, suvning idish tubiga bosimi qanday o’zgaradi? A) Ortishi xam, kamayishi xam mumkin B) Ortadi C) Kamayadi D) O’zgarmaydi 2 / 25 Xalqaro birliklar sistemasida kuch birligi A) kg / s² B) m / s² C) kg*m / s² D) kg*m²/s² 3 / 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) Orqaga B) Oldinga C) Yuqoriga D) Pastga 4 / 25 Oyda erkin tushish tezlanishi nimaga teng? (m/s2) A) 1 B) 7,9 C) 1,6 D) 9,8 5 / 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 6 / 25 Gravitatsion doimiy xalqaro birliklar sistemasida qanday birlik bilan aniqlanadi A) N/m² B) N*kg C) m³/kg*s² D) kg*m/S² 7 / 25 Yer uchun uchunchi kosmik tezlik qiymatini ko’rsating A) 11,2 km/s B) 7,9 km/s C) 16,7 km/s D) 7,9 m/s 8 / 25 Oyning yer atrofida harakatlanish tezligini toping. Yer massasi 6*10 24 kg, yer bilan oy orasidagi masofa 400 000 km gravitatsion doimiylik Nm2/kg2 A) 7,9 km/s B) 1 km/s C) 9,8 km/s D) 11,2 km/s 9 / 25 Liftdagi odam o’ta yuklanishga duch kelishi mumkinmi? A) Yo’q B) Xa lift tezlanish bilan pastga tushganda C) Xa lift yuqoriga ko’tarilganda D) Xa agar lift tezlanish bilan yuqoriga ko’tarilsa 10 / 25 Faqat butun olam tortishish kuchlari ta’sirida erkin harakat qilayotgan xar qanday jism ......... xolatida bo’ladi A) vaznsizlik B) turg’unmas muvozanat C) o’ta yuklanish D) turg’un muvozanat 11 / 25 Jism 20 m/s tezlik bilan tik yuqoriga otildi. Jism necha sekund eng baland nuqtasigacha ko’tariladi? g = 10 m/s2 A) 2 c B) 3 c C) 4 c D) 1 c 12 / 25 Tezlanish formulasi qanday ifodalanadi A) a = (v - v˳)/t B) p = m / v C) S = at² / 2 D) p = F / S 13 / 25 Boshlang’ich tezliksiz erkin tushayotgan jism birinchi sekunda qanday masofani o’tadi?g = 10 m/s2 A) 0,5 m B) 5,5 m C) 5 m D) 50 m 14 / 25 Tezlanishning o’lchov birligini ko’rsating A) m²/s B) m/s² C) m/s D) s/ m² 15 / 25 m/s2 tezlanish bilan to’g’ri chiziq bo’ylab harakatlanayotgan jismning holatidan boshlab birinchi sekunda qanday masofani (m) o’tadi? A) 7 B) 4 C) 8 D) 6 16 / 25 Soatning 30 mm uzunlikdagi minut uchi 10 minutda 31,4 mm uzunlikdagi yo’lni bosib o’tdi. Minut mili uchining burilish burchagini toping. (rad) A) 5 rad B) 4 rad C) 1,05 rad D) 3 rad 17 / 25 Soatning 30 mm uzunlikdagi minut uchi 10 minutda 31,4 mm uzunlikdagi yo’lni bosib o’tdi. Minut mili uchining burchak tezligini toping. A) 0,0017 rad/s B) 0,17 rad/s C) 0,017 rad/s D) 1,7 rad/s 18 / 25 Aylanish davri bilan chiziqli tezligi orasidagi munosabat formulasini toping. A) V=S/t B) V=2¶R/T C) V=at D) V=wR 19 / 25 Jismning vaqt birligi ichida to’liq aylanishlari soni aylanishi ….. deb ataladi A) chastotasi B) davri C) tezligi D) tezlanishi 20 / 25 Aylana bo’ylab tekis harakatda markazga intilma tezlanish formulasini ko’rsating. 1) a=v2/R, 2) a=v2/2R, 3) a=v/t A) 2 B) 1,2 C) 3 D) 1 21 / 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 22 / 25 Aylanma tekis harakatga chiziqli tezlik va burchakli tezlik bog’lanish formulasini ko’rsating A) υ=2pR/T B) ω=2p/T C) υ=ωR D) ω=2p υ 23 / 25 Burchakli ko’chishning vaqtga nisbati qanday fizik kattalik? A) davr B) chastota C) tezlanish D) burchakli tezlik 24 / 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) 3 C) 5 D) 4 25 / 25 Aylanma tekis harakatda aylanish davri va chastotasi bog’lanishi formulasini ko’rsating A) t=T*N B) T=1/v C) T=t/N D) T=2¶R/V 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