Bahodirov Xusniddin 922-22 7-maruza. Molekulyar fizika

Bahodirov Xusniddin 922-22
7-maruza. Molekulyar fizika
1. Mexanik energiya necha xil boladi ?
A) 3 xil ; B) 4 xil ; C) 2 xil ; D) 5 xil ;
2. 20 g massali po’lat sharcha 1 m balandlikdan po’lat taxtachaning ustiga tushib, undan 81 sm balandlikgacha sakraydi. Urilish vaqtida taxtachaning olgan kuch impulse topilsin.
A) 0.17 J ; B) 5 J ; C) 2.1 J ; D) 3 J ;
3. Agar jismning kinetic energiyasi 1 J, ipulsi 1 kg*m/s bolsa , uning massasini toping ?
A) 1 kg ; B) 0.5 kg ; C) 2 kg ; D) 5 kg ;
4. 3.32*10-19 J energiya bilan xarakatlanayotgan a zarrachaning tezligini toping . m = 6.64*10-27
A) 2000 ; B) 8000 ; C) 6000 ; D) 10000 ;
5. Uzunligi 5 sm bo’lgan prujina 40 N kuch tasirida 1 sm ga chozildi . Prujinani patensial energiyasini toping .
A) 0.2 ; B) 0.4 ; C) 0.6 ; D) 1.2 ;
6. 2 kj kintik energiyaga ega 10 kg massali jismning tezligini toping .
A) 0.2 ; B) 2 ; C) 20 ; D) 10 ;
7. Kinetic energiya jismni qanday energiyasi hisoblanadi ?
A) harakat energiyasi ; B) holat energiyasi ;
C) tinchlikdagi energiya ; D) TJY ;
8. 50 kg massali jism 10 m balandlikka 20 s vaqt bilan tekis kotarildi. Bajarilgan ish topilsin ?
A) 15 kj ; B) 10 kj ; C) 25 kj ; D) 5 kj ;
9. 4 s da 2000 J ish bajara oladigan divagatelning quvvati qanchaga teng .
A) 500 ; B) 400 ; C) 800 ; D) 300 ;
10. Quyidagi keltirilgan kuchlarning qaysi biri ish bajarmaydi .
A) arximed kuchi ; B) ishqalanish kuchi ;
C) larens kuchi ; D) amper kuchi ;

1	2	3	4	5	6	7	8	9	10
C	A	B	D	A	C	A	D	A	C