9-sinf fizika 2-chorak

9-sinf fizika 2-chorak.

1. Izotermik jarayonda nima o’zgarmedi.

A) bosim B) hajim C) temperatura D) hammasi

2. T=const bo’lganda gazning bosimi hajmiga qanday proporsional

A) teskari B) to’g’ri C) har-hil D) farqi yo’q

3. Izobarik jarayon tenglamasi qanday

A) PV=const B) P/T=const C) V/T=const D) PT=const

4. Izoxorik jaryon uchun termodinamikaning birinchi qonuni ifodasi

A) Q=A B) Q= U C) Q= U+A D) Q= U +P U

5. Izotermik jarayonda gazga 2kj issiqlik miqdori berilgan bo’lsa, gaz ustida qancha ish bajarilgan

A) 5 kj B) 4kj C)3kj D) 2kj

6. Gazga 6kj issiqlik miqdori berilganda uning ichki energiyasi 2kj ortdi . Gaz ustida qanday ish bajarilgan

A) 2kj B) 4kj C)6kj D) 8kj

7. P=const bo’lgan jarayon qaysi jarayon

A) izobarik B) izoxorik C) izotermik D) hammasi

8. Yoqilg’ini solishtirma yonish issiqligi formulasi

A) Q=qm B) q=Q/m C) Q=cm(t₂-t₁) D) Q=cmt

9. Yoqilg’ini solishtirma yonish issiqligi o’lchov birli nima?

A) J B) pa C) j/kg D) kg m/s²

10. Solishtirma issiqlik sig’imi formulasi

A)Q=Q₁+Q₂ B) Q=q/m C) Q=qm D) c=Q/m(T₂-T₁)

11. 1 kalloriya necha joulga teng

A) 0.24 B) 24 C) 42 D) 4.2

12. 1mol ideal gaz uchun holat tenglamasi.

A) PV/T=R B) P=nKT C) PV=mRT/M D) V/T=const

13. Izobarik jarayonda temperatura ortsa hajim qanday o’zgaradi.

A) kamayadi B) ortadi C) o’zgarmaydi D) qisman kamayagi

14. Temperaturaning Seltsi shkalasidan Kelvin shkalasiga o’tish formulasi

A) T=t+273 B) t=T-372 C) 2nE_k/3 D) E_k=mv²/2

15. 1 mol moddaning massasi nma deyiladi.

A) Avagadro doimiysi B) massa atom birligi C) molar massa

D) bolsman doimiysi.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

C A C B D B A B C D D A B A C