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Testni Vafaqulov Alisher tayyorladi.

1 / 25

Tezligi υ=5-3 t (m/s) tenglama bilan berilgan jismning boshlangich tezligi (m/s) nimaga teng?

A) 2

B) 5

C) 4

D) 3

2 / 25

Tekis tezlanuvchan harakat qilayotgan “Matiz” 10 s davomida tezligini 54 km / soat dan 100 km / soat ga oshirdi. «Matiz»ning tezlanishini toping

A) 15 m/s²

B) 13 m/s²

C) 2,5 m/s²

D) 3 m/s²

3 / 25

Boshlang’ich tezliksiz erkin tushayotgan jism birinchi sekunda qanday masofani o’tadi?g = 10 m/s²

A) 5 m

B) 5,5 m

C) 0,5 m

D) 50 m

4 / 25

Balkondan boshlang’ich tezliksiz tushib ketgan jism 1 s da yerga etib kelgan bo’lsa, u qanday balandlikdan (m) tushgan?

A) 15

B) 5

C) 20

D) 10

5 / 25

Yuqoriga tik otilgan jism H balandlikkacha ko’tarildi. U 4H balandlikkacha ko’tarilishi uchun otish tezligini qanday o’zgartirishi kerak?

A) 4marta orttirish

B) 1marta orttirish

C) 5marta kamaytirish

D) 2marta orttirish

6 / 25

Tekis sekinlanuvchan harakatda tezlik va tezlanish ishoralarining munosabatini ko’rsating.

1) υ₀ > 0, a<0 2) υ₀ = 0, a<0 3) υ₀ < 0, a>0

4) υ >0, a>0

A) 2,3

B) 3,4

C) 4

D) 1,3

7 / 25

Samolyot qo’nish paytida g’ildiraklari yerga tekkandagi tezligi 360 km/soat. Agar uning tezlanishi 2m/s² bo’lsa, u qancha vaqtdan keyin to’xtaydi

A) 100 s

B) 50 s

C) 5 s

D) 25 s

8 / 25

Avtomobil 5 m/s² tezlanish bilan tinch holatdan harakat boshladi. U 4s da necha metr yo’l o’tadi?

A) 30

B) 20

C) 40

D) 10

9 / 25

Jismning harakat tenglamasi x = 2 – 3 t + 2 t² formula bilan berilgan. Bu harakat uchun tezlik tenglamasini yozing

A) υ= 4 + 3 t

B) υ= 4 - 3 t

C) υ= - 3 + 4 t

D) υ = 4 t

10 / 25

Jism 20 m/s tezlik bilan tik yuqoriga otildi. Jism necha sekund eng baland nuqtasigacha ko’tariladi? g = 10 m/s²

A) 3 c

B) 1 c

C) 2 c

D) 4 c

11 / 25

Erkin tushish deb qaysi harakatga aytiladi

A) jismning havosiz joyda faqat yerning tortish ta’sridagi harakatiga

B) jismga hech qanday kuch ta’sir qilmagandagi harakatiga

C) xar qanday harakatga

D) qo’ldan qo’yib yuborgan jism harakatiga

12 / 25

Joyidan qo’zg’algan jism 0,2 m/s² tezlanish bilan harakatlanganda 1 minutda u qanday tezlikka erishadi

A) 0,12 m/s

B) 12 m/s

C) 1,2 m/s

D) 120 m/s

13 / 25

25 m/s tezlik bilan yuqoriga tik otilgan jismning 2 s dan keyingi tezligi qancha bo’ladi?

A) 20 m/s

B) 15 m/s

C) 5 m/s

D) 10 m/s

14 / 25

Tezlanishning o’lchov birligini ko’rsating

A) m/s²

B) m/s

C) m²/s

D) s/ m²

15 / 25

Jism yerdan 35 m/s tezlik bilan tik yuqoriga otildi. U yerga necha sekunddan so’ng tushadi?

A) 7

B) 5

C) 9

D) 3

16 / 25

Erkin tushib harakat qilayotgan jismning tezligi har sekundda qanchaga o’zgaradi

A) 10 m/s

B) o’zgarmaydi

C) 15 m/s

D) 5 m/s

17 / 25

m/s² tezlanish bilan to’g’ri chiziq bo’ylab harakatlanayotgan jismning holatidan boshlab birinchi sekunda qanday masofani (m) o’tadi?

A) 4

B) 8

C) 6

D) 7

18 / 25

Jism harakat tenglamasi x=5+3t–t² formula bilan berilgan. Jismning boshlang’ich koordinatasi nimaga teng?

A) 1 m

B) 3 m

C) 9 m

D) 5 m

19 / 25

Boshlang’ich tezliksiz erkin tushayotgan jism 3-sekund ichida qanday masofani o’tadi? g = 10 m/s²

A) 5 m/s

B) 10 m/s

C) 15 m/s

D) 25 m/s

20 / 25

Joyidan qo’zg’algan jism 0,3 m/s² tezlanish bilan harakat qilib, qancha vaqtda 9 m/s tezlikka erishadi?

A) 25 s

B) 20 s

C) 30 s

D) 15 s

21 / 25

Jism tezlik proporsiyasining vaqtga bog’lanish v = 3+2t (m/s) ko’rinishga ega. Ko’chish proyeksiyasining vaqtga bog’lanishi qanday?

A) S = 3t + 1 t²

B) S = 2t²

C) S = 3t + 2 t²

D) S = 2t + 3 ²

22 / 25

Jism tekis tezlanuvchan harakat boshlab, 3-sekundda 5 m yo’l o’tdi. U harakatning boshlang’ich 3 sekundida qanday yo’l o’tadi (m) ?

A) 7

B) 11

C) 9

D) 13

23 / 25

Erkin tushayotgan jism ikkinchi sekundda qanday masofani (m) o’tadi?

A) 15

B) 5

C) 35

D) 25

24 / 25

Tekis tezlanuvchan harakatda tezlik va tezlanish ishoralarning munosabatini ko’rsating.

1) υ₀ > 0, a>0

2) υ₀ > 0, a<0

3) υ₀ < 0, a<0

4) υ₀<0, a>0

A) 2,4

B) 3,4

C) 1,3

D) 1,2

25 / 25

Tezlanish formulasi qanday ifodalanadi

A) S = at² / 2

B) p = m / v

C) p = F / S

D) a = (v - v˳)/t

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Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho