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Fizika f a nida n nazoratish L a r I va labo r atoriyala rBog'liq 7-sinf NI va Lab Dildoraxon 2022
3-NAZORAT ISHI
Yozma ish
1-qator
1.Sinf xonasining o’lchamlari eni 8m ,bo’yi 12m va balandligi 3m ga teng.Agar
havoning zichligi 1,29,kg/m3 bo’lsa honadagi xavoning massasini hisoblang
2.Massasi 45 kg bo’lgan jism yerdan ko’tarilayotib ,3 m/s tezlanis oldi.Jismning
og’irlik kuchini va og’irligini toping.
3.Yerdan 10000 m balandlikda 900 km/soat tezlik bilan uchib ketayotgan
samolyotning to’liq energiyasini toping. Samolyot massasi 30000 kg.
2-qator
1.Hajmi 2 litr bo’lgan idishga qancha o’simlik yig’i sigadi.
2.Massasi 10 gr bo’lgan yaproq daraxtdan uzilib,0,3 m/s tezlanish bilan yerga
tushmoqda.Yaproqning og’irlik kuchini va og’irligini toping.
3.Daraxtning shohida o’tirgan ,massasi 5 kg bo’lgan burgutning potensial
energiyasi 0,4 kj bo’lsa,u qanday balandlikda turibdi?
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