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Test. Fizika.9-sinf.II-variant.
1. Moddaning solishtirma erish issiqligi belgisi va birligi qanday?
A) C, J/kgK B) q, J/kg C) λ, J/kg D) r, J/kg
2.T=const bo’lsa, P1V1=P2V2 bo’lish jarayoni qanday jarayon?
A) izobarik B) izotermik C) izoxorik D) adiabatik
3.Izobarik jarayon formulasini ko’rsating.
A) PV=const, T=const B) P/T=const, V=const C) V/T=const, P=const D) PV=const, T=const
4.Aniq erish temperaturasiga ega bo’lmagan jism …… .
A) Kristal jism B) amorf jism C) polokristall D) monokristal
5.Izoxorik jarayon uchun termodinamikaning I qonuni formulasi qanday.
A) Q=ΔU+A B) ΔU=A C) Q=A D) ΔU=A
6. Mendeleyev-Klapeyron tenglamasi qanday?
A) P=nkT B) PV=νRT C) PV=RT D) PV= const
7. Moddaning solishtirma issiqlik sig’imi belgisi va birligi?
A) C, J/kgK B) q, J/kg C) λ, J/kg D) r, J/kg
8. Ideal gaz molekular-kinetik nazariyasining asosiy tenglamasi qanday?
A) m= ν M B) Ek=m0υ2/2 C) P=n m0υ2/3 D) υ=
9. Universal gaz doimiysi qanday va nechaga teng?
A)NA=6,02*10231/mol B) K=1,38*10-23J/K C) R=8,31J/molK D) K=1,38*1023J/K
10. Moddaning gaz holatidan suyuq holatiga o’tishi nima deyiladi?
A) erish B) suyulish C) kondensatsiya D) sublimatsiya
11. Moddaning erish uchun zarur bo’lgan issiqlik miqdori formulasi qanday?
A) Q=r m B) Q=c m Δt C) Q=λm D) Q=qm
12.Havoning nisbiy namligi qanday asbob bilan o’lchanadi?
A) barometr B) psixrometr C) monometr D) termometr
13.Izojarayonlar necha xil bo’ladi?
A) 2 B) 3 C) 4 D) 5
14. Keltirilgan formulalardan qaysi biri moddaning yonish issiqligidir?
A) Q=r m B) Q=c m Δt C) Q=λm D) Q=qm
15. Moddalarning bug’lanish tezligi nimalarga bog’liq?
A) xaroratga B) modda turiga C) sirt yuziga D) A,B,C
16.Mexanik kuchlanish formulasini ko’rsating.
A) σ=F/S B) σ=FS C) p=F/S D) F=σℓ
17.Suvning qaynash temperaturasi necha gradus?
A) 20 B) 90 C) 0 D) 100
18.Nisbiy uzayish qanday harf bilan belgilanadi?
A) λ B) ε C) σ D) µ
19. Moddaning qattiq holatidan gaz holatiga o’tish jarayoni ...... deyiladi.
A) erish B) qotish C) kondensatsiya D) sublimatsiya
20.Harorat o’zgarmas bo’ladigan izojarayon …… deyiladi.
A) izobarik B) izotermik C) izoxorik D) adiabatik
21. Termodinamikaning I qonuni formulasi qanday.
A) Q=A B) Q=ΔU+A C) Q=ΔU D) ΔU=A
22. Termodinamik ish bajarilmaydigan jarayon qaysi?
A) izobarik B) izotermik C) izoxorik D) adiabatik
23.Sirt taranglik kuchi formulasi qanday?
A) σ=F/S B) σ=FS C) p=F/S D) F=σℓ
24. 270C necha kelvin?
A) 100K B) 200K C) 300K D) 400K
25. 1kg suvni xaroratini 100C ga oshirish uchun qancha issiqlik miqdori kerak?
A) 4200J B) 420J C) 42J D) 4.2J
9 sinf I variat
1. Our homework ____ very difficult yesterday, but today it ____ easy.
A) is / is B) was / is C) was / was D) is / was
2. I know that I _____ late 2 days ago, but this time I _____ late.
A) am / were B) am not / am not
C) was / was D) wasn’t / am
3. A: _____ was she born?
B: She _____ born in New Zealand.
A) Where / was B) Where / were
C) When / were D) When / was
4. A: _____ were they late for the meeting?
B: Because they _____ asleep.
A) What / were B) Why / was
C) Why / were D) Why / are
5. The weather _____ nice today, but it _____ nasty yesterday.
A) is / was B) was / is C) is / is D) is / were
6. A: _____ was Mr. Black born?
B: He was born _____ 1963.
A) When / at B) Where / in C) What / in D) When / in
7. The students _____ very tired today.
Because they _____ at a party last night.
A) were / are B) are / was C) are / were D) were / were
8. A: _____ was Jennifer’s job 2 years ago?
B: She _____ a flight attendant.
A) Why / were B) What / was C) Who / was D) Who / were
9. A: _____ is the briefcase?
B: It _____ 200 dollars, but it _____ 100 dollars before.
A) How much / is / was B) How many / is / was
C) How much / was / is D) How much / is / is
10. A: How old _____ you in 1990?
B: I _____ 10, but I _____ 25 now.
A) are / are / was B) were / was / am
C) was / are / were D) were / was / are
11. Bonny and Nick _____ tennis last weekend, but they rarely _____
tennis.
A) played / play B) play / play
C) play / plays D) play / played
12. It _____ a lot in winter here, but it _____ last year.
A) snows / rains B) snowed / rained
C) snow / rain D) snows / rained
13. Last year it _____ for three months, but it _____ just for two weeks.
A) snows / rains B) snowed / rained
C) snowing / raining D) snow / raining
14. A: _____ it snow a little in winter in Holland?
B: Yes, it _____ . But last winter it _____ snow at all.
A) Do / do / didn’t B) Does / do / doesn’t
C) Does / does / didn’t D) Do / does / don’t
15. A: _____ you usually work for 8 hours a day?
B: Yes, I _____ . But last week I _____ for 8 hours a day.
A) Do / do / didn’t work B) Do / did / didn’t worked
C) Did / did / don’t work D) Do / did / don’t work
16. A: _____ Alex _____ you yesterday evening?
B: No, he _____ .
A) Did / helped / didn’t B) Did / helped / did
C) Did / help / did D) Did / help / didn’t
17. It _____ Jack’s birthday two days ago.
A) was B) were C) is D) are
18. A: Who _____ you eat with?
B: Well, I _____ dinner with friends.
A) did / eat B) did / eats C) did / ate D) did / eaten
19. Ann usually _____ to work, but yesterday she_____ .
A) drive / walks B) drives / walked
C) drove / walked D) drive / walk
20. It usually _____ a lot in winter but last year it _____ .
A) rains / snowed B) rains / snows
C) rain / snowed D) rain /snow
21. I _____ to the U.S.A. ten years ago.
A) went B) go C) visit D) gone
22. What’s _____ television this evening?
A) at B) on C) in D) of
23. Today’s the third _____ April.
A) in B) on C) of D) at
24. I left the party early _____ I didn’t feel well.
A) because B) but C) until D) so
25. They didn’t go to bed _____ midnight.
A) when B) until C) so D) because
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