Navoiy shahar 10-umumiy o’rta ta’lim maktabi 6- “ ” sinf o’quvchisi ning

Sana ______________________

6-laboratoriya ishi

Mavzu: Termometr yordamida havo va suyuqlik temperaturasini o’lchash

Kerakli asboblar. Termometr, issiq suv, sovuq suv, menzurka, shisha ayoqcha, suv solish uchun kosacha.

Ishni bajarish tartibi

1. 
   Termometr fizika xonasining quyosh nurlari to‘g‘ridan-to‘g‘ri tush- naycligan, isitish vositalari (batareya, plitka) dan uzoqda, lekin shkalasi iniq ko‘rinadigan joyga osib qo‘yiladi.
   
2. 
   Tajribani o‘tkazishga tayyorlanish jarayonida (5-6 min) termometr
3. 
   Plitka yoki gaz alangasida suvli idish qizdiriladi.
   
4. 
   Menzurkada 100 ml suv o‘lchab olinib, kosachaga quyiladi va termometr suvga tushiriladi. Biror minutdan so‘ng termometr ko‘rsatishi t_t yozib olinadi.
   
5. 
   Menzurkada 100 ml suv o‘lchab olinadi va unga termometr tushiriladi. Biror minutdan so‘ng termometr ko‘rsatishi t₂ yozib olinadi.
   
6. 
   Menzurkadagi issiq suvni sovuq suvli kosachaga ag‘dariladi. Shish.i tayoqcha bilan aralashtirilib, temperaturasi t₃ oichanadi.
   
7. 
   Yuqoridagi tajribani issiq suvning temperaturasi turlicha bo'lgan liollarda takrorlanadi.
   

Savollar:

1. 
   Nima sababdan suvga tushirib olingan termometrning ko’rsatishi suvdan olinganda tushib ketadi?
   
2. 
   Tajribalarni naychasining diametri kichikroq bo’lgan termometr bilan o’tkazilsa, o’lchash aniqligi qanday o’zgaradi?
   

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