Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1018 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 Soatning 30 mm uzunlikdagi minut mili uchi 10 minutda 31,4 mm uzunlikdagi yo’lni bosib o’tdi. Minut mili uchining chiziqli tezligini toping A) 0,00005 m/s B) 0,005 m/s C) 0,5 m/s D) 0,0005 m/s 2 / 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) 3 rad B) 1,05 rad C) 4 rad D) 5 rad 3 / 25 Soatning vaqt mili burchakli tezligini toping. (rad/s) A) π/10 B) π/30 C) π/2600 D) π/1800 4 / 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) 36 km/soat D) 0,36 km/soat 5 / 25 Soatning sekund mili burchakli tezligini toping. (rad/s) A) π/30 B) π/1800 C) π/2600 D) π/10 6 / 25 60 N kuch jismga 0,6 m/s2 tezlanish beradi. Qanday kuch bu jismga 2 m/s2 tezlanish beradi? A) 180 N B) 150 N C) 250 N D) 200 N 7 / 25 Nyutonning 3 qonuni formulasi qaysi ifodada to’g’ri ko’rsatilgan? A) F = mv²/ R B) F = mg C) F1 =- F2 D) F = - k x 8 / 25 1000 mN necha N? A) 400 B) 70 C) 1 D) 10 9 / 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) O’zgarmaydi D) Kamayadi 10 / 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) 2 m/s² B) 1 m/s² C) 0,8 m/s² D) 0 11 / 25 Xalqaro birliklar sistemasida kuch birligi A) kg*m²/s² B) m / s² C) kg*m / s² D) kg / s² 12 / 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/16 B) F/2 C) F/4 D) F/9 13 / 25 Oyda erkin tushish tezlanishi nimaga teng? (m/s2) A) 7,9 B) 9,8 C) 1,6 D) 1 14 / 25 Yer uchun birinchi kosmik tezlik qiymatini ko’rsating A) 16,7 km/s B) 11,2 km/s C) 7,9 km/s D) 7,9 m/s 15 / 25 Faqat butun olam tortishish kuchlari ta’sirida erkin harakat qilayotgan xar qanday jism ......... xolatida bo’ladi A) vaznsizlik B) turg’un muvozanat C) o’ta yuklanish D) turg’unmas muvozanat 16 / 25 Jismning yerga tortilish kuchi …… deb ataladi A) og’irlik kuchi B) jism og’irligi C) bosim kuchi D) reaksiya kuchi 17 / 25 Yer uchun uchunchi kosmik tezlik qiymatini ko’rsating A) 16,7 km/s B) 7,9 m/s C) 11,2 km/s D) 7,9 km/s 18 / 25 Yerning quyosh atrofida aylanish tezligi nimaga teng A) 10 km/s B) 30 km/s C) 40 km/s D) 1 km/s 19 / 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 20 / 25 Tekis tezlanuvchan harakat qilayotgan “Matiz” 10 s davomida tezligini 54 km / soat dan 100 km / soat ga oshirdi. «Matiz»ning tezlanishini toping A) 2,5 m/s² B) 3 m/s² C) 15 m/s² D) 13 m/s² 21 / 25 Tezligi υ=5-3 t (m/s) tenglama bilan berilgan jismning boshlangich tezligi (m/s) nimaga teng? A) 4 B) 5 C) 3 D) 2 22 / 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 23 / 25 Erkin tushib harakat qilayotgan jismning tezligi har sekundda qanchaga o’zgaradi A) o’zgarmaydi B) 5 m/s C) 10 m/s D) 15 m/s 24 / 25 Jism harakat tenglamasi x=5+3t–t2 formula bilan berilgan. Jismning boshlang’ich koordinatasi nimaga teng? A) 1 m B) 5 m C) 3 m D) 9 m 25 / 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= 4 + 3 t D) υ= - 3 + 4 t 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