Fizika fanidan 9 – sinflar uchun test savollari I – Variant

9 – sinf “Fizika” fanidan I chorak uchun testi.

1. 
   Bitta kislorod ( O₂) molekulasining massasi qanchaga teng( kg ) ?
   

A)5.5*10^-26 B)5.3*10^-26 C)19*10^-23 D)1.9*10^-26

2. 
   Hajmlari teng bo’lgan suv ( N_s) va muzdagi (N_m) molekulalar sonini taqqoslang.
   

A) B) C) D)

3. 
   3.01*10²⁶ ta temir atomining massasini hisoblang(kg).Temirning molar massasi 56 . N_A = 6.02*10²³ mol ^-1
   

A)28 B)280 C)56 D)168

4. 
   Bitta uglerod atomining massasini aniqlang(kg). M=12 , N_A = 6*10²³ mol ^-1
   

A)7.2*10^-27 B)2*10^-26 C)5*10^-26 D)5*10^-27

5. 
   2 mol suv qancha hajmni egallaydi(sm³)?
   

A)V₁=V₂ B)V₁=16V₂ C) V₁=32V₂ D) V₂=32V₁

6. 
   36sm³ hajmdagi suvda nechta molekula bor? N_A = 6*10²³ mol ^-1
   

A)1.2*10²⁴ B)2.4*10²⁴ C)3.6*10²⁴ D)6*10²⁴

7. 
   Avogadro soni deb qanday fizik kattalikka aytiladi ?
   

A)12g ugleroddagi atomlar soniga B)1 mol moddadagi zarrachalar soniga

C)32g kisloroddagi molekulalar soniga D)2g vodoroddagi molekulalar soniga

8. 
   Sig’imi 200 sm³ bo’lgan stakandagi suvda nechta molekula bor.M=18 ,ρ = 1 , N_A = 6*10²³ mol ^-1
   

A)6.5*10²⁸ B)6.7*10²⁴ C)6*10²⁵ D)6.7*10²³

8. 
   135 g alyuminiydagi atomlar soni 197 g oltindagi atomlar sonidan necha marta ko’p?
   

M_A=27 , M_O=197 .

A)1.5 B)2 C)2.5 D)5

8. 
   9g suvdagi molekulalar sonini toping.M=18 , N_A = 6*10²³ mol ^-1
   

A)12*10²³ B)3*10²³ C) 3.24*10²⁴ D)6*10²³

11. Molekular deb nimaga aytiladi?

A) moddaning kimyoviy xossalarinio o’zida saqlab qoluvchi shu moddaning eng kichik zarrasi

B) moddaning issiqlik holatini miqdor jihatidan aniqlaydigan fizik kattalikdir

C) moddaning ichki energiyasi

D) kimyoviy parchalanish reaksiyasi

12. Temperatura deb nimaga aytiladi?

A) moddaning ichki energiyasi

B) moddaning kimyoviy xossalarinio o’zida saqlab qoluvchi shu moddaning eng kichik zarrasi

C) moddaning issiqlik holatini miqdor jihatidan aniqlaydigan fizik kattalikdir

D) kimyoviy parchalanish reaksiyasi

13. Termodinamik nuqtayi nazardan ………………… moddaning ichki holatiga bog’liq bo’lib, temperatura va hajm orqali aniqlanadi.

A) temperatura

B) gaz

C) moddaning ichki energiyasi

D) ichki energiya

14. Modda ichki energiyasini issiqlik berish yoki olish orqali o’zgartirish jarayoni ……...… deyiladi.

A) moddaning issiqlik holatini miqdor jihatidan aniqlaydigan fizik kattalikdir

B) issiqlik uzatish

C) moddaning ichki energiyasi

D) kimyoviy parchalanish reaksiyasi

15. Molekulalarning atomlarga ajralishi …………………………..…. deb ataladi.

A) temperatura

B) gaz

C) moddaning ichki energiyasi

D) kimyoviy parchalanish reaksiyasi

Test javoblari.

Savol	01.	02.	03.	04.	05.	06.	07.	08.	09.	10.	11.	12.	13.	14.	15.
Javob	A	A	A	B	A	A	B	B	D	B	A	C	D	B	D