7-sinf Fizika 4-chorak Aprel 26, 2021Aprel 26, 2021 da chop etilgan InfoMaster tomonidan 7-sinf Fizika 4-chorak ga fikr bildirilmagan. 4 Tomonidan yaratilgan InfoMaster 7-sinf Fizika 4-chorak Testni Vafaqulov Alisher tayyorladi. 1 / 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 C) 2 m/s² D) 0,5 m/s² 2 / 25 Soatning minut mili aylanishining chastotasini toping.(Hz) A) 1/100 B) 1/7200 C) 100 D) 1/3600 3 / 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) 0,00005 m/s D) 0,5 m/s 4 / 25 1 m/s2 tezlanish bilan tushayotgan liftdagi 20 kg massali bolaning og’irligi qancha? A) 200 N B) 170 N C) 180 N D) 190 N 5 / 25 Velosiped g’ildiragining o’qidan eng uzoq nuqtasi 0,02 s davomida 20 km yo’lni bosib o’tdi. Velosipedning tezligini toping A) 0,36 km/soat B) 4 km/soat C) 3,6 km/soat D) 36 km/soat 6 / 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) 9 B) 13 C) 11 D) 7 7 / 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) 1,7 rad/s D) 0,017 rad/s 8 / 25 Erkin tushish deb qaysi harakatga aytiladi A) jismga hech qanday kuch ta’sir qilmagandagi harakatiga B) qo’ldan qo’yib yuborgan jism harakatiga C) jismning havosiz joyda faqat yerning tortish ta’sridagi harakatiga D) xar qanday harakatga 9 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish uzoqligi qanday o’zgaradi A) 2 marta ortadi B) o’zgarmaydi C) 2 marta kamayadi D) 4 martta ortadi 10 / 25 Ko’tarilish balandligi 4 marta ortishi uchun yuqoriga otilgan jismning boshlang’ich tezligini necha marta oshirish lozim A) 45 martta B) 50 martta C) 55 martta D) 60 martta 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) 3,4 C) 4 D) 1,3 12 / 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) 4 rad C) 1,05 rad D) 5 rad 13 / 25 Ikki jism bir biriga F kuchi bilan tortilmoqda. Agar birining massasi n marta kamaytirilsa ular qanday kuch bilan tortiladi A) F(n+1) B) F(n-1) C) F*n D) F/n 14 / 25 Avtomobil 5 m/s2 tezlanish bilan tinch holatdan harakat boshladi. U 4s da necha metr yo’l o’tadi? A) 40 B) 30 C) 10 D) 20 15 / 25 Agar jism biror balandlikdan ikki baravar katta tezlik bilan gorizantal otilsa, uning uchish vaqti qanday o’zgaradi A) o’zgarmaydi B) 4 martta ortadi C) 2 marta ortadi D) 2 marta kamayadi 16 / 25 Xalqaro birliklar sistemasida kuch birligi A) kg*m / s² B) kg / s² C) kg*m²/s² D) m / s² 17 / 25 Zambarakdan gorizantga burchak ostida uchib chiqqan snaryad 12 sekund uchgan. Snaryad ko’tarilgan eng yuqori balandlik qancha A) 10m B) 20m C) 360m D) 180m 18 / 25 Oyda erkin tushish tezlanishi nimaga teng? (m/s2) A) 9,8 B) 1 C) 1,6 D) 7,9 19 / 25 Soatning sekund mili burchakli tezligini toping. (rad/s) A) π/2600 B) π/1800 C) π/30 D) π/10 20 / 25 Yer uchun birinchi kosmik tezlik qiymatini ko’rsating A) 11,2 km/s B) 7,9 m/s C) 16,7 km/s D) 7,9 km/s 21 / 25 Tezlanishning o’lchov birligini ko’rsating A) m/s² B) m/s C) m²/s D) s/ m² 22 / 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) 2 D) 3 23 / 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 24 / 25 Jism 20 m/s tezlik bilan tik yuqoriga otildi. Jism necha sekund eng baland nuqtasigacha ko’tariladi? g = 10 m/s2 A) 4 c B) 3 c C) 1 c D) 2 c 25 / 25 m/s2 tezlanish bilan to’g’ri chiziq bo’ylab harakatlanayotgan jismning holatidan boshlab birinchi sekunda qanday masofani (m) o’tadi? A) 6 B) 7 C) 4 D) 8 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 Fizika choraklik
