Physics Quiz

Physics Quiz

University

10 Qs

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Physics Quiz

Physics Quiz

Assessment

Quiz

Physics

University

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Azamat Yuldoshev

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Vertikal devorga 3,5 kg massali taxtacha qo'yildi va uni 47,65 N kuch bilan rasmdagi kabi bosildi. Agar taxtacha tinch turgan bo'lsa, unga ta'sir qiluvchi ishqalanish kuchini aniqlang(N). g=9,8 m/s2.

26,5

50,2

10,55

44,85

34,3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Massasi 20 kg bo'lgan brusok gorizontal tekislikda, tekislikka parallel kuch ta'sirida tekis tezlanuvchan harakatlanmoqda. Brusok va tekislik sirti orasidagi ishqalanish koeffitsiyenti 0,7 ga teng bo'lsa, vujudga kelgan ishqalanish kuchini toping (N). g = 10 N/kg.

0

120

50

140

100

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Har birining massasi 4 kg bo‘lgan uch g‘isht ustma-ust qo‘yilgan. O‘rtadagi g‘ishtni sug‘urib olish uchun kamida necha Nyuton kuch kerak bo‘ladi? G‘ishtlar orasidagi ishqalanish koeffitsienti 0,4.

16

24

48

50

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Massasi 30 kg bo'lgan g'o'laga qiyalik burchagi 60O bo'lgan qiya tekislik bo'ylab ko'tarilishda 30 N ishqalanish kuchi ta'sir qiladi. Ishqalanish koeffitsientini toping.

0,03

0,05

0,15

0,2

0,1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Massasi m=2 kg bo'lgan jism ikki tizimcha yordamida ikkita bir xil F = 10 N kuchlar bilan gorizontal yo'nalishda tortib ketilmoqda. Agar tizimchalardan biri uzilib ketsa, jism qanday harakat qiladi? (ishqalanish koeffitsienti μ=0,5.)

jism darrov to'xtaydi

jismning tezlanishi 2 marta kamayadi

jism asta-sekin to'xtaydi

jism o'zgarmas tezlik bilan harakatini davom ettiradi

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Massasi 4 kg bo'lgan jism gorizontal sirtda turibdi. Unga 2 m/s2 tezlanish berish uchun qanday (N) kuch bilan ta'sir etish kerak? Sirt bilan jism orasidagi ishqalanish koeffitsienti 0,2 ga teng.

160

1,6

8

16

32

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

72 km/h tezlik bilan ketayotgan avtomobilga tormoz berilgach, u 25 m yo'l bosib to'xtadi. G'ildiraklar bilan yer orasidagi ishqalanish koeffitsienti qanday?

0,25

0,4

0,5

0,8

0,65

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