XalQ ta’lim vazirligi

5 - NAZORAT ISHI


Nazorat shakli: Yozma ish

1. 
   . 1 m/s² tezlanish bilan tushayotgan liftdagi 20 kg massali bolaning vazni qanday(N)? g=10m/s²
   

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2.2 kg massali yuk osilganda, 5sm uzunlikdagi prujina 1sm uzaydi. Prujinaning bikrligini aniqlang (N/m).
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3. . Massasi 1,2 t bo’lgan avtomobil qavariqlik radiusi 40 m bo’lgan ko’prikdan 36 km/soat tezlik bilan o’tayotganda, uning og’irligi nimaga teng bo’ladi ? Erkin tushish tezlanishi g=10 m/s².
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6 – NAZORAT ISHI
Nazorat shakli: Test


1. Gapni to’ldiring: “ Bir jism sirtida ikkinchi jism sirpanmasdan dumalasa, bunda ular orasida hosil bo’ladigan ishqalanish .... deb ataladi. ”
A) ... sirpanish ishqalanishi ... B) ... dumalash ishqalanishi ...
C)... tinch holatdagi ishqalanish ... D) ....sirpanma harakat ...
2. Gravtatsiya doimiysining son qiymati nimaga teng ( N ∙m² / kg² ) ?
A) 6.67∙10^-8 B) 9,81 C) 9.11∙10 ^-31 D) 6.67∙10^-11