1-dars sana: 9-sinf Mavzu: Molekular –kinetik nazariya haqida tushuncha Darsning maqsadi

3. Ishning borishi

1. 
   Dinamometrni yuqori halqasidan shtativga o'mating.
   
2. 
   Chizg'ich yordamida II shaklida bukilgan simning perimetri / ni o'lchang.
   
3. 
   Dinamometrning pastki halqasiga II shaklidagi simni iling va simning og'irlik kuchi F_{ ni o'lchang.
   
4. 
   Alohida idishda sovunli suv eritmasini tayyorlang va uni ko'pirtiring.
   
5. 
   Dinamometrga osilgan simni idishdagi eritmaga tushiring.
   
6. 
   Eritma solingan idishni astalik bilan pastga tomon siljitib, simning eritmadan uzilishi davridagi dinamometrning ko'rsatishi F₂ ni yozib oling.
   
7. 
   F= Fi~ F₂ formuladan sirt taranglik kuchini toping.
   
8. 
   Formula yordamida suyuqlikning sirt taranglik koefFitsientini hisoblang.
   
9. 
   Tajribani uch marta takrorlang va sirt taranglik koeffitsientining o'rtacha qiymatini hisoblang.
   

10. Tajriba davomidagi o'lchash va hisoblash natijalarini yozing.