Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1077 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 O’zaro ta’sirlashuvchi jismlarning bir-biriga ta’sir kuchlari bir to’g’ri chiziq bo’yicha yo’nalgan, moduli bo’yicha teng va yo’nalish bo’yicha qarama-qarshidir. Bu ....... A) Nyutonning butun olam tortishish kuchi qonuni B) Nyutonning 2 qonuni C) Nyutonning 1 qonuni D) Nyutonning 3 qonuni 2 / 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) 4 B) 8 C) 12 D) 16 3 / 25 1000 mN necha N? A) 10 B) 400 C) 70 D) 1 4 / 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 5 / 25 60 N kuch jismga 0,6 m/s2 tezlanish beradi. Qanday kuch bu jismga 2 m/s2 tezlanish beradi? A) 250 N B) 150 N C) 180 N D) 200 N 6 / 25 Soatning vaqt mili burchakli tezligini toping. (rad/s) A) π/2600 B) π/1800 C) π/30 D) π/10 7 / 25 Jismning vaqt birligi ichida to’liq aylanishlari soni aylanishi ….. deb ataladi A) tezligi B) tezlanishi C) chastotasi D) davri 8 / 25 Soatning minut mili aylanishining chastotasini toping.(Hz) A) 100 B) 1/100 C) 1/3600 D) 1/7200 9 / 25 Aylanma tekis harakatda chiziqli tezlik bilan burchak tezlik orasidagi munosabat formulasini ko’rsating A) w=2¶V B) w=4/t C) V=wR D) w=2¶/T 10 / 25 Agar moddiy nuqta aylana bo’ylab teng vaqtlar orasida teng yollarni bosib o’tsa, bunday harakat ....... harakat deyiladi A) tekis aylanma tezlik B) tekis C) notekis D) aylanma o’zgaruvchan 11 / 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) 4 rad B) 3 rad C) 5 rad D) 1,05 rad 12 / 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) 4 km/soat C) 0,36 km/soat D) 36 km/soat 13 / 25 Soatning sekund mili burchakli tezligini toping. (rad/s) A) π/10 B) π/30 C) π/1800 D) π/2600 14 / 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) 5 B) 4 C) 3 D) 2 15 / 25 Jism tekis tezlanuvchan harakat boshlab, 3-sekundda 5 m yo’l o’tdi. U harakatning boshlang’ich 3 sekundida qanday yo’l o’tadi (m) ? A) 13 B) 7 C) 11 D) 9 16 / 25 Yuqoriga tik otilgan jism H balandlikkacha ko’tarildi. U 4H balandlikkacha ko’tarilishi uchun otish tezligini qanday o’zgartirishi kerak? A) 5marta kamaytirish B) 2marta orttirish C) 1marta orttirish D) 4marta orttirish 17 / 25 Jism tezlik proporsiyasining vaqtga bog’lanish v = 3+2t (m/s) ko’rinishga ega. Ko’chish proyeksiyasining vaqtga bog’lanishi qanday? A) S = 3t + 1 t² B) S = 2t² C) S = 2t + 3 ² D) S = 3t + 2 t² 18 / 25 Tezlanish formulasi qanday ifodalanadi A) a = (v - v˳)/t B) S = at² / 2 C) p = m / v D) p = F / S 19 / 25 Erkin tushib harakat qilayotgan jismning tezligi har sekundda qanchaga o’zgaradi A) 10 m/s B) o’zgarmaydi C) 15 m/s D) 5 m/s 20 / 25 Boshlang’ich tezliksiz erkin tushayotgan jism 3-sekund ichida qanday masofani o’tadi? g = 10 m/s2 A) 15 m/s B) 25 m/s C) 5 m/s D) 10 m/s 21 / 25 Jism yerdan 35 m/s tezlik bilan tik yuqoriga otildi. U yerga necha sekunddan so’ng tushadi? A) 5 B) 7 C) 3 D) 9 22 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish vaqti qanday o’zgaradi A) 2 marta ortadi B) 2 marta kamayadi C) 4 martta ortadi D) o’zgarmaydi 23 / 25 Zambarakdan gorizantga burchak ostida uchib chiqqan snaryad 12 sekund uchgan. Snaryad ko’tarilgan eng yuqori balandlik qancha A) 180m B) 20m C) 360m D) 10m 24 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish uzoqligi qanday o’zgaradi A) 2 marta ortadi B) 2 marta kamayadi C) o’zgarmaydi D) 4 martta ortadi 25 / 25 Yerning tortishish kuchi ta’sirida jismning yer atrofida aylana bo’ylab, harakatlanishida erishtiradigan tezlik ………. deyiladi A) 2-kosmik tezlik B) notekis tezlik C) 1-kosmik tezlik D) 3-kosmik tezlik 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