D 4 marta ortadi

Nazorat ishi N1

1.Agar biror balandlikdan gorizontal otilayotgan jismning otilish tezligi 4 marta oshirilsa, uning harakatlanish vaqti qanday o‘zgaradi?

A) o‘zgarmaydi B) 2 marta kamayadi

C) 2 marta ortadi D) 4 marta ortadi

2.Jumlaning mazmuniga mos so’zni qo’yib gapni to’ldiring. Jismning fazodagi vaziyatining boshqa jismlarga nisbatan vaqt o’tishi bilan o’zgarishiga … deyiladi.

A) mexanik harakat B) traektoriya C) bosib o’tilgan yo’l D) ko’chish

3.10 m/sek tezlik bilan tekis xarakatlanayotgan jism 6 km masofani necha minutda bosib utadi ?

A) 10 min B) 5min C) 7min D) 12min

4.Tinch turgan jism tekis tezlanuvchan xarakat kilib, 8 sek da 20 m/sek tezlikka erishdi. Jism kanday tezlanish bilan xarakat kilgan?

A) 2.5 B) 3.5 C) 4.5 D)5.5

5. 25 m/sek tezlik bilan yukoriga tik otilgan jismning 2 sek dan keyingi tezligi kancha buladi ?

A)5.5 B)6.5 C) 5 D)6

6. Jism 30 m/sek tezlik bilan yukoriga tik otildi. Jism kanday balandlikka kutariladi

A)25 B)35 C) 45 D)55

7. Radiusi 0.5 m bulgan charxpalak chelagi 1.5 m/sek chizikli tezlik bilan aylanmokda. Charxpalakni burchak tezligini toping.

A) 2 B) 4 C) 1 D)3

8. Uzunligi 25 sm bulgan ipga boglangan sharcha 5 m/sek chizikli tezlik bilan aylanmokda. Sharchani markazga intilma tezlanishini toping.

A) 100 B) 10 C)1 D)0.1

9. Aylanish chastotasi 20 (1/sek.) Ventilyator parragining aylanish davrini toping?

A) 20 B) 0.05 C) 0.5 D) 0.2

10.0.1 sek davomida gildirak 1 rad ga buriladi. Uning ukidan 5, sm uzoklikdagi nuktalarning chizikli tezligini toping?

A) 2 B)1.5 C) 1 D)0.5