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1. Xalqaro birliklar sistemasida nechta asosiy birlik kiradi ?
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| Sana | 19.04.2024 | | Hajmi | 18.69 Kb. | | #201598 |
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Manitoring test 7-sinf
1 . Xalqaro birliklar sistemasida nechta asosiy birlik kiradi ?
5 ta B) 6 ta C) 7 ta D) 4 ta
2. Tezlik formulasini toping ?
v=s/t B) s=v*t C) t=s/v D) v=t/s
3. Sportchi 3 m/s tezlik bilan 20 minutda qancha masofani bosib o`tadi?
A) 1700 m B) 1600 m C) 1800 m D) 3600 m
4 . Aylanish davri qanday harfi bilan belgilanadi?
N B) T C) t D) v
5. Aylanish chastotasinining formulasini toping?
A) T=t/N B) v=s/t C) T=N/t D) v=N/t
6 . Aylanish davrining formulasini toping?
T=t/N B) v=N/t C) v=s/t D) S=v*t
7. Yerning o`z o`qi atrofida aylanish davri 24 soatga teng. U 144 soatda o`z o`qi atrofida necha marta aylanadi?
A) 5 TA B) 6 TA C) 8 TA D) 7 TA
8. Massasi 4 kg bo’gan suvni temperaturasini 15° С dan 25° С gacha isitish
uchun unga kerak bo’ladigan issiqlik miqdorini toping (kJ). с = 4200
672 B) 320 C) 168 D) 120
9. 2 kg toshko‘nir to‘liq yonib tamom bo‘lguncha qancha issiqlik miqdori
chiqaradi (MJ) ? q = 2,9 • 10 7 J / kg .
A) 58 B)75 B) 118 D) 160
10. Erish temperaturasida olingan 3kg muzni to‘la eritish uchun qancha issiqlik
miqdori kerak (kJ) ? . = 3,4 • 105 J / kg .
A) 850 B) 1020 B) 1050 C) 2010
11. Kondensatsiya nima?
A) Bug’ (gaz) ning suyuqlikka aylanishi B) Suyuqlikning bug’ga aylanishi
C) Qattiq jism suyuqlikka aylanishi D) To’g’ri javob yo’q
12. 10 kg ni grammga aylantiring .
1000 gr B) 100 gr C) 10000 gr D) 10 gr
13 . Zichlik formulasini toping?
V=s/t B) s=v*t C) p =m/v D) p=v/m
14 . Massasi 1800 gramm bo`lgan muzning hajmini aniqlang (sm3)?
1500 B) 18000 C)1000 D) 2000
15. Elektronning massasi nechchi kg ?
A) -1.6*10-19 B) 9.1*10-31 C) 1.67*10-27 D) 6.67*10-27
16. Elekton va Proton zaryad ishoralarini toping?
A) + va - B) - va + C) + va + D) - va -
Javoblar
1 C
2 A
3 D
4 B
5 D
6 A
7 B
8 C
9 A
10 B
11 A
12 C
13 C
14 D
15 B
16 B
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