Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1114 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 2 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 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 2 / 25 1000 mN necha N? A) 400 B) 10 C) 1 D) 70 3 / 25 Xalqaro birliklar sistemasida kuch birligi A) m / s² B) kg*m²/s² C) kg*m / s² D) kg / s² 4 / 25 60 N kuch jismga 0,6 m/s2 tezlanish beradi. Qanday kuch bu jismga 2 m/s2 tezlanish beradi? A) 150 N B) 180 N C) 250 N D) 200 N 5 / 25 Agar reaktiv samolyot dvigatelining tortish kuchi 90 k N bo’lsa, massasi 60 t bo’lgan samolyot tezlik olish vaqtida qanday tezlanish bilan harakatlanadi? A) 1 m/s² B) 0,5 m/s² C) 2 m/s² D) 0 6 / 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) 16 B) 8 C) 4 D) 12 7 / 25 Tezlanishning o’lchov birligini ko’rsating A) m/s B) m²/s C) s/ m² D) m/s² 8 / 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 9 / 25 Samolyot qo’nish paytida g’ildiraklari yerga tekkandagi tezligi 360 km/soat. Agar uning tezlanishi 2m/s2 bo’lsa, u qancha vaqtdan keyin to’xtaydi A) 25 s B) 50 s C) 100 s D) 5 s 10 / 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) 3,4 B) 1,3 C) 1,2 D) 2,4 11 / 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) 1,3 D) 3,4 12 / 25 Tezligi υ=5-3 t (m/s) tenglama bilan berilgan jismning boshlangich tezligi (m/s) nimaga teng? A) 4 B) 5 C) 2 D) 3 13 / 25 Yuqoriga tik otilgan jism H balandlikkacha ko’tarildi. U 4H balandlikkacha ko’tarilishi uchun otish tezligini qanday o’zgartirishi kerak? A) 4marta orttirish B) 5marta kamaytirish C) 1marta orttirish D) 2marta orttirish 14 / 25 Markazga intilma tezlanish formulasi qaysi ifodada to'g'ri ko’rsatilgan? A) a=v/t B) a=(v-v˳)/t C) a=F/m D) a=v²/R 15 / 25 Aylanma tekis harakatda tezlanish qanday yo’nalgan? A) xar xil yo’nalgan bo’lishi mumkin B) urinma bo’ylab C) radius bo’ylab markazdan D) radius bo’ylab markazga 16 / 25 Aylanma tekis harakatga chiziqli tezlik va burchakli tezlik bog’lanish formulasini ko’rsating A) υ=2pR/T B) ω=2p υ C) ω=2p/T D) υ=ωR 17 / 25 Burchakli ko’chishning vaqtga nisbati qanday fizik kattalik? A) tezlanish B) davr C) burchakli tezlik D) chastota 18 / 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) 1,05 rad C) 5 rad D) 3 rad 19 / 25 Soatning sekund mili burchakli tezligini toping. (rad/s) A) π/30 B) π/2600 C) π/10 D) π/1800 20 / 25 Lift a A) (P=mg) B) P=m(g+a) C) P=m(a-g) D) P=m(g-a) 21 / 25 Jismning yerga tortilish kuchi …… deb ataladi A) jism og’irligi B) og’irlik kuchi C) reaksiya kuchi D) bosim kuchi 22 / 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 23 / 25 Oyda erkin tushish tezlanishi nimaga teng? (m/s2) A) 9,8 B) 1 C) 1,6 D) 7,9 24 / 25 Yer sirtidagi h=2R balandlikda erkin tushish tezlanishi nimaga teng A) g/4 B) g/2 C) g D) g/9 25 / 25 Yer uchun ikkinchi kosmik tezlik qiymatini ko’rsating A) 16,7 km/s B) 7,9 km/s C) 11,2 km/s D) 7,9 m/s 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