Ishning maqsadi

Ishning maqsadi: turli massali sharlar tezligini o‘zgartirib, kinetik energiya ishqalanish

kuchini yengishini kuzatish yordamida energiyaga oid bilimlarini mustahkamlash.

Kerakli jihozlar: turli massali 2 ta po‘lat sharcha, metall nov, brusok, o‘lchov tasmasi, sekundomer, shtativ.

Ishni bajarish tartibi

1. 137-rasmda ko‘rsatilganidek shtativ yordamida novni qiya holatda o‘rnating. Novning

pastki uchiga brusokni tirab qo‘ying.

2. Novning o‘rta qismiga kichik massali sharchani qo‘ying va uni qo‘yib yuborib, nov
bo‘ylab qanday dumalashi, yog‘och brusokka kelib urilishi, ishqalanish kuchini yengishi

va brusokni ma’lum masofaga siljitishini kuzatib boring.

3. Brusok siljib qolgan masofa Δl ni o‘lchang.

4. Sharchani novning yuqori uchidan qo‘yib yuborib, tajribani takrorlang.

5. Katta massali sharchani novning o‘rta qismidan qo‘yib yuboring va brusokning siljishini yana qayta o‘lchang.

6. 1-laboratoriya ishidagi kabi masofa va vaqtni o‘lchab, sharcha olgan tezlanishni toping. Tezlanish va vaqt ko‘rsatkichlaridan foydalanib, sharchaning brusokka urilish vaqtidagi

tezligini aniqlang va 𝐸_𝑘=^𝑚∙𝑣2

formuladan kinetik energiyani toping.

7. Brusokning surilishida bajarilgan ish va kinetik energiya orasidagi bog‘lanish

natijalarini tahlil qiling va xulosa chiqaring.

Hisoblash:

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Xulosa:
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