
9- B sinf 2-nazorat ish
Authored by шокир искандаров
Physics
9th Grade
Used 2+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molekular-kinetik nazariyaga ko’ra modda tuzilishining 3 ta omili to’g’ri berilgan javobni ko’rsating. 1.Moddalar zarralardan – atom va molekulalardan tashkil topgan. 2.Atom va molekulalar to’xtovsiz va tartibsiz harakat qiladi. 3.Atom va molekulalar orasida o’zaro tortishish va itarishish kuchlari mavjud. 4.Tabiatda moddalar uch holatda: gaz, suyuq va qattiq holatda uchraydi
A) 1, 3, 4
B) 2, 3, 4
S) 1, 2, 3
D) 1, 2, 4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suyuqlik va gazlarda zarralarning to’xtovsiz va tartibsiz harakati nima deb ataladi?
A) diffuziya
B) broun harakat
S) ilgarilanma harakat
D) temperatura
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Molekulalar konsentratsiyasi deb nimaga aytiladi?
A) moddaning kimyoviy xossasini saqlab qoladigan eng kichik zarraga
B) molekula va atomlarning to’xtovsiz va tartibsiz harakatiga
S) moddaning issiqlik holatini miqdor jihatdan saqlaydigan kattalikka
D) moddaning hajm birligidagi molekulalar soniga
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
.Bitta molekulaning massasi o’rtacha qancha atrofida bo’ladi?
A) 10-22 kg – 10-29 kg
B) 10-20 kg – 10-28 kg
S) 10-22 kg – 10-20 kg
D) 10-27 kg – 10-25 kg
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
5 litrli idishda 2,4∙1024 ta gaz molekulasi bor. Gaz molekulalari konsentratsiyasini toping.
A) 4,8∙1026 m-3
B) 12∙1024 m-3
S) 7,4∙1022 m-3
2,4∙1025 m-3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Universal gaz doimiysining son qiymati to’g’ri berilgan javobni ko’rsating
A) 1,38∙10-23 J/K
B) 8,31 J/K∙mol
S) 9∙109 N∙m2/C2
D) 6,02∙1023 1/mol
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Molar massaning xalqaro birliklar sistemasi (XBS)dagi birligini ko’rsating
A) 1 J/K
B) 1 kg/mol
S) 1 mol-1
D) 1 Pa
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