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7-sinf uchun fizikadan test savollari
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| bet | 1/2 | | Sana | 05.02.2024 | | Hajmi | 42,5 Kb. | | #151906 |
Bog'liq 7-sinf-fizika
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
Savol
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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,…
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