7-sinf uchun fizikadan test savollari
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Bog'liq7-sinf-fizika
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7-sinf uchun fizikadan test savollari. 1.Fazo necha o`lchamli? a) 3o`lchamli b)2 o`lchamli s)1o`lchamli d)T.J.Y 2.Qaralayotgan holda o`lchamlari va shaklini hisobga olmasa ham bo`ladigan kichik jism deyiladi a)moddiy jism b)trayektoriya s)moddiy nuqta d)vaqt 3.Ko`chish deb nimaga aytiladi? a) trayektoriyaning bir qismi b) trayektoriyaning vaqt ichida bosib o`tilgan qismi s)jismning boshlang`ich va oxirgi vaziyatini tutashtiruvchi to`g`ri chiziq d)vektor kattalik 4. Jism teng vaqtlar ichida teng yo`llarni bosib o`tsa bunday harakatga deyiladi. a) notekis harakat b)ilgarilanma harakat s)tekis harakat d) aylanma harakat 5. Tekis o`zgaruvchan harakatda tezlanish formulasini belgilang a) a=V/t b) a=(V-V0) /t s) V=V0 +at d) t=V/a 6. Tekis o`zgaruvchan harakat tezligini topish formulasini belgilang. a) a=V-V0/t b) V=V0/t S)V=at d) V=S/t 7.Tekis o`zgaruvchan harakatda bosib o`tilgan yo`lni to`pish formulasini begilang a)a=V-V0 /t b) S=at2/2 s)S=V0t+-at2/2 d)S=V.t 8. Havosiz joyda jismning faqat yerning ta’siridagi harakati deyiladi? a)erkin tushish b)notekis harakat s)tezlanish d)tekis harakat. 9.Agar raketa 40m/s2 tezlanishi bilan harakat boshlagan bo`lsa, 2s dan so`ng uning tezligi qanday bo`ladi(m/s)? a)80 b)20 s)60 d)38 10. Avtomabil tekis tezlanuvchan harakat qilmoqda uning bo`shlang`ich tezligi 2 m/s, oxirgi tezligi 18 m/s bo`lsa, o`rtacha tezlikni toping? a)20m/s b) 16 m/s s)9 m/s d)10 m/s 11.Erkin tushish boshlanganidan 4s o’tgan paytda jism tezligi necha m/s bo`ladi? a)40 b)30 c)20 d)10 12.Moddiy nuqtaning aylanma tekis harakatida tezlikni topish formulasini belgilang. a)V=S/t b) V=V0+t s)V=2пR/T d)V=at 13.Erkin tushish tezlanishi nechaga teng? a)9,8 b)11 s) 0,98 d)10 14.Aylanma harakatda chiziqli va burchakli tezliklar orasidagi bo`lanishni ifodalaydigan formulani belgilang? a)V=W/R b)V=WR s) V=2пR/t d) V=S/t 15.Aylanma harakatda tezlanish formulasini belgilang? A)a=V-V0/t b)V=WR s)a=V2/R d)a=S2/t 16.Kuchning o`lchov birligini yozing? 17.Nyutonning II qonuni formulasini belgilang? 18.Tezlanishning o`lchov birligini yozing? 19.1 soat necha sekundga teng? 20.720km/soat necha m/s ga teng? 21.Aylanish davri qanday harf bilan belgilanadi? 22.Aylanish chastotasi ta’rifini yozing? 23.Chastotaning o`lchov birligi nima? 24.Nyutonning III qonuni formulasini yozing 25.Vektor kattaliklarga misol yozing? 7-sinf fizika fanidan test kalitlari
Yopiq test javoblari Nyuton a=F/m m/s 2 3600 s 20 m/s T Birlik vaqt ichidagi aylanishlar soni aylanish chastotasi deyiladi Gers (Hz) F1=-F2 F,V,a, S,… Download 42.5 Kb. Do'stlaringiz bilan baham: 
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