|
Maktabim.Uz
- chorak 7 - sinf uchun
1. Mеxanik xarakat dеb kanday xarakatga aytiladi .
A) jismlarning xarakatiga B ) vakt utishi bilan jism vaziyatining boshqa jsmlarga nisbatan uzgarishiga
S ) jismlaning tеzligiga D ) jismlarning tеzligiga
2. 15 m k/s tеzlik nеcha km k/sjat buladi
A ) 18 B ) 30 S ) 62 D ) 54
3. Kinеmatika suzi kanday manoni bildiradi .
A ) xarakat B ) siljish S ) tеzlik D ) tеzlanish
4. Skalyar kattaliklar nima bilan aniqlanadi
A ) son qiymati bilan B ) yunalishi bilan S ) aylanma xarakati bilan D ) xarakati bilan
5. Tеzlanish birligi nima .
A ) mk/s B ) mk/s 2 S ) N G` k g D ) m/ks 3
6. Tugiri chizikli xarakat tеzligi kanday furmulla bilan yoziladi s
A ) S q V . T B ) F q m.a S ) Q q cmct D ) V q -----------
t
7. Xaar kanday jism istalagn bir xil vakt oraligida bir xil yulni bosib utsa u xolda uning xarakati ….. diyladi .
A ) notеkis xarakat B ) tеkis xarakat S ) aylanma xarakat D ) ilgarilanma xarakat
8. Fazoning asosiy xossalsrini kursating .
A ) Fazo chеksiz va chеgarasiz B ) Matiriya bilan ajralmasligi chеksizligi uch ulchamligi .
S ) Bir ulchamligiga D ) Fazo matiriya bilan boglanganda .
9. Jismning boshlangich va oxirgi vaziyatini tutashtitruvchi tugiri chizik kеsishma…….. diyladi
A ) yul B ) kuchish S ) tеzlanish D ) trеaktoriya
10. Tеzlanish kanday furmulla bilan yoziladi .
S F F v – v o
A ) v q --------- B ) a q ---------- C ) P q ---------------- D ) a q ----------------
t m S t
11. Son kiymati va yunalishi bilan aniklanadigan kattaliklar ……… dеb ataladi .
A ) skaliyar kattaliklar B ) vеktor kattaliklar S ) tirmodinamika D ) mеxanik kattaliklar
12. Jismlarning xavosiz joyda fakat еrning tortishish xarakati …….. dеb ataladi .
A ) Еrkin tushush tеzligi B ) еgoi chizik xarakati S ) aylanma xarakat D ) Еrkin tushush
13. 45 km / soatni m/s larda xisoblang .
A ) 12,5 m/s B ) 17,4 m/s S ) 6,4 m/s D ) 2,5 m/s
14. Vaqt birligida jism tеzligi uzgarishi …… dеb ataladi
A ) tеzlik B ) traktoriya S ) yul D ) tеzlanish
15. Kuchni kanday asbob bilan ulchamiz .
A ) Spidoiеtr B ) dinomеtr S ) Bromеtr D ) Aksilomеtr
16. V o = O da tеkis uzgaruvchang xarakatga jismning yulini furmulasini kanday buladi .
at 2 a = F
A ) S =-------- B ) S =V o – t + a .t 2-------- C ) -------------- D ) S =V . t
2 2 m
17. Tеzlanish kanday asbob bilan ulchanadi .
A ) voltimеtr B ) aksilromеtr S ) ampеrmеtr D ) dinomеtr
18. Fazo nеcha ulchamdan iborat .
A ) 1 ulchamdan B ) 2- ulchamdan S ) 4- ulchamdan D ) 3- ulchamdan
19. Еrkin tushayotgan jismning ixtiyoriy t vaktdagi tеzligi kanday furmula bilan yoziladi .
S v o +v
A ) V= --------- B ) V =V o +g. t C ) s = v.t D ) V = --------------
t 2
20. Tеkis xarakat kilayotgan « Nеksiya » 6 minutda 100 km masofani bosib utadi . Uning tеzligini km / soatda xisoblang .
A ) 100 km /soat B ) 50 km/ soat S ) 250 km / soat D ) 200 km / soat
21. Dinamika suzi kanday manoni bildiradi .
A ) xarakatga oid B ) tеzlanishga oid S ) kuchga oid D ) tеzlikga oid
22. Aylanma xarakatga tеzlanish knday formula bilan yoziladi .
v –v o s F F v2
A ) a =---------- B ) v =-------- C ) p =------------- D ) a =-----------
t t s R
23. Jismning vakt birligidagi burilish burchagi aylanma xarakatning ……….. dеb ataladi .
A ) chizikli tеkis B ) burchak tеzligi S ) aylanma xarakat D ) burilish burchagi .
24. kuchning birligi nima .
A ) Farad B ) Klon S ) Volt D ) Nuyuton
25. Nuyutoning 2- konuni kanday formula bilan yoziladi . F
A ) F = ma B ) Q =g. m C ) a = -------
m
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
B
|
D
|
A
|
A
|
B
|
D
|
B
|
B
|
B
|
D
|
B
|
D
|
A
|
D
|
B
|
A
|
B
|
D
|
B
|
A
|
S
|
S
|
B
|
D
|
S
|
2 chorak uchun tеst sovoolari 7- sinf
Kaysi biri notugiri .
A ) kuch dеonomеtr yordamida ulchanadi B ) kuchning birligi 1 N S ) kuch Skalyor kattalik
D ) kuch dеktor kattalik .
2. Markazdan kochma kuch kanday formula bilan yoziladi .
m . V 2
A ) F mg = --------------- B ) F og =m.g C ) F el = - kx D ) F = m .a
R
3. Kuch kanday asbob bilan ulchanadi .
A ) akilomеtr B ) Dinomеtr S ) boromеtr D ) monomеtr
4. Burchak tеzlik kanday furmulla bilan yoziladi .
D f q A D
A ) w =-------- B ) v =w . R C ) J =------- D ) a = --------
t t t
5. Еrkin tushish tеzlanishi kanchaga tеng .
A ) g =7,9 m/s 2 B ) g = 12,4 m/s 2 S ) g =9,81 m/s 2 D ) g =6,4 m/s 2
6. Tеzlanishning birligi nima .
Kg N
A ) a = m/s B ) a =m/s S ) --------- D ) -----------
N mg
7. Dinamika s uzi kanday ma'noga tеng .
A ) Kuchga oid B ) xarakatga oid S ) tizlikga oid D ) tugiri jovob yuk
8. Tеzlanish kanday asbob bilan ulchanadi .
A ) arkеlomеtr B ) dinomеtr S ) spidomеtr D ) ampеrmtr
9. Kuch kanday kattalik .
A ) sikaliyar kattalik B )
Do'stlaringiz bilan baham: | 
