Uy » Choraklik online testlar » Fizika choraklik » 7-sinf Fizika 4-chorak Fizika choraklik 7-sinf Fizika 4-chorak InfoMaster Aprel 26, 2021 1069 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 1 0 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 25 Aylanma tekis harakatga chiziqli tezlik va burchakli tezlik bog’lanish formulasini ko’rsating A) ω=2p/T B) ω=2p υ C) υ=ωR D) υ=2pR/T 2 / 25 Agar moddiy nuqta aylana bo’ylab teng vaqtlar orasida teng yollarni bosib o’tsa, bunday harakat ....... harakat deyiladi A) tekis B) notekis C) tekis aylanma tezlik D) aylanma o’zgaruvchan 3 / 25 Aylanma tekis harakatda chiziqli tezlik bilan burchak tezlik orasidagi munosabat formulasini ko’rsating A) V=wR B) w=2¶V C) w=4/t D) w=2¶/T 4 / 25 Soatning minut mili burchakli tezligini toping A) π/30 B) π/1800 C) π/10 D) π/2600 5 / 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) 10 B) 1 C) 100 D) 2 6 / 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) 0,005 m/s B) 0,0005 m/s C) 0,5 m/s D) 0,00005 m/s 7 / 25 Jismning vaqt birligi ichida to’liq aylanishlari soni aylanishi ….. deb ataladi A) tezlanishi B) tezligi C) davri D) chastotasi 8 / 25 Burchakli ko’chishning vaqtga nisbati qanday fizik kattalik? A) tezlanish B) davr C) burchakli tezlik D) chastota 9 / 25 Erkin tushish tezlanishi jismning yer sirtidan balandligiga bog’likligi qaysi formulada ko’rsatilgan A) m/s² B) f/m C) g/m² D) g=GM/(R+h)² 10 / 25 Yerning quyosh atrofida aylanish tezligi nimaga teng A) 1 km/s B) 30 km/s C) 40 km/s D) 10 km/s 11 / 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) 11,2 km/s C) 1 km/s D) 9,8 km/s 12 / 25 Oyning yer atrofida aylanish tezligi nimaga teng A) 40 km/s B) 1 km/s C) 30 km/s D) 10 km/s 13 / 25 Oyda erkin tushish tezlanishi nimaga teng? (m/s2) A) 7,9 B) 1 C) 9,8 D) 1,6 14 / 25 Yer uchun birinchi kosmik tezlik qiymatini ko’rsating A) 11,2 km/s B) 7,9 m/s C) 7,9 km/s D) 16,7 km/s 15 / 25 Yerga tortilishi tufayli jismning tayanchga yoki osmaga tasr etadigan kuchi .......... deb ataladi A) jism og’irligi B) bosim kuchi C) og’irlik kuchi D) reaksiya kuchi 16 / 25 Yerning tortishish kuchi ta’sirida jismning yer atrofida aylana bo’ylab, harakatlanishida erishtiradigan tezlik ………. deyiladi A) 2-kosmik tezlik B) 3-kosmik tezlik C) notekis tezlik D) 1-kosmik tezlik 17 / 25 Yer uchun ikkinchi kosmik tezlik qiymatini ko’rsating A) 7,9 m/s B) 11,2 km/s C) 7,9 km/s D) 16,7 km/s 18 / 25 Nyutonning 2-qonuni formulasini ko’rsating A) a = v² /R B) a = 2s/ t² C) a = F / m D) a = v/t 19 / 25 1000 mN necha N? A) 400 B) 10 C) 1 D) 70 20 / 25 Odam liftda turibdi. Odamga ta’sir qiluvchi kuchlar: mg – og’irlik kuchi, N – tayanch reaksiya kuchi, Lift pastda to’xtashdan oldin sekinlashganda kuchlar orasidagi munosabatni ko’rsating. Lift pastda to’xtashdan oldin sekinlashyapti 1) mg > N 2) mg < N 3) mg = N 4) mg = 0; N = 0 A) 1 B) 3 C) 4 D) 2 21 / 25 Xalqaro birliklar sistemasida kuch birligi A) kg*m²/s² B) kg*m / s² C) m / s² D) kg / s² 22 / 25 Qaysi shart bajarilganda, jism suyuqlikda tekis cho’ka boshlaydi? (mg-og’irlik kuchi, Fa- Arximed kuchi, F-qarshilik kuchi) 1) m g > F = F a 2) m g = F 3) m g = F = F a 4) mg < F = F a A) 3 B) 4 C) 1 D) 2 23 / 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) 12 C) 8 D) 4 24 / 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) 11 C) 9 D) 7 25 / 25 Jism harakat tenglamasi x=5+3t–t2 formula bilan berilgan. Jismning boshlang’ich koordinatasi nimaga teng? A) 1 m B) 9 m C) 3 m D) 5 m 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