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Worksheets

Fizikadan testlar

Total questions: 30

Worksheet time: 16mins

Name
Class
Date
1.

x(t) = Acos(ωt) bo‘lsa, tezlik qanday?

a)

A cosω t

b)

-Aωsin(ω t)

c)

Asin(ω t)

d)

-A cos(ω t)

2.

Tezlikning hosilasi nimani bildiradi?

a)

Ko‘chish

b)

Tezlik

c)

Tezlanish

d)

Masofa

3.

x(t) = 4t2 bo‘lsa, tezlik qanday o'zgaradi?

a)

8t

b)

4t

c)

2t

d)

16t

4.

Mexanikada fizik model nima uchun qo‘llaniladi?

a)

Tajribalarni

tezlashtirish

b)

Moddalarni

o‘lchash

c)

Energiya

sarfini

kamaytirish

d)

Murakkab

tizimlarni

soddalashtirish

5.

Mexanikada fizik modelga misol keltiring

a)

avtomobil

harakatini nuqta

sifatida

tasvirlash

b)

Matematik

mayatnik

c)

Garmonik

tebranish

d)

Hamma

javoblari tog‘ri

6.

Jism egri chizigli notekis harakatlanmoqda. Tangensial tezlanish tezlikning qaysi shaklining o'zgarishi bilan bog'liq?

a)

tezlikning moduli

b)

tezlikning yo'nalishi

c)

tezlikning har qanday o'zgarishi

d)

tezlikning moduli va yo'nalishi o'zgarishi

7.

Qaysi hollarda sanoq sistemasi inersial hisoblanadi?

a)

agar Nyutonning 2 qonuni bajarilsa

b)

agar jism sanoq sistemasiga nisbatan to'g'ri chizqli harakatlansa

c)

agar Nyutonning 1 qonuni bajarilsa

d)

agar jism erkin tushayotgan bo'lsa

8.

Agar harakatlanayotgan jismga o'zgarmas kuch ta`sir etsa ......

a)

harakat o'zgarmaydi

b)

jism to'g'ri chiziqli tekis haraklanadi

c)

jism tezlanish oladi

d)

jism o'zgaruvchan tezlanish oladi

9.

Jismning impulsi . . . . . . . . . ga teng

a)

massasi bilan tezlanish ko'paytmasiga

b)

kuchning ta`sir vaqtga ko'paytmasi

c)

massasi bilan tezlik ko'paytmasiga

10.

Bikrligi k bo‘lgan cho‘zilmagan prujinaning uzunligi x ga orttirishda bajarilgan ish

qanday?

a)

kx2

b)

-kx

c)

kx

d)

kx2 /2

11.

Massasi 500 g bo‘lgan jismning tezligi 10 sm/s ga teng bo‘lsa, jismning kinetik

energiyasini aniqlang

a)

4 mJ

b)

3 mJ

c)

2,5 mJ

d)

1 mJ

12.

Agar fazoda biror nuqta A(x,y,z) koordinatalarda

joylashgan bo‘lsa, radius-vektor moduli

a)

r=x2+y2+z2r=\sqrt[]{x^2+y^2+z^2}

b)

r= x2+y2r=\ \sqrt[]{x^2+y^2}

c)

r2=x2+y2+z2r^2=x^2+y^2+z^2

13.

Massa va og‘irlik orasidagi farq nimada?

a)

Massa kuch,

og‘irlik modda

miqdori

b)

Massa modda

miqdori, og‘irlik

kuch

c)

Ikkalasi bir xil

d)

To'g'ri javob yo'q

14.

Yung modulining fizik ma`nosi

a)

jismning potesialini orttirish uchun bajarilgan ish

b)

Stejenni cho'zish uchun kuchlanganlik

c)

jismni ikki marta uzaytirishdagi normal kuchlanish

d)

jism ustida manfiy ish bajarishdagi kuchlanganlik

15.

Markazga intiluvchi kuch qayerda uchraydi?

a)

To‘g‘ri chiziqli

harakatda

b)

Erkin tushishda

c)

Issiqlik

uzatishd

d)

Aylanma

harakatida

16.

Giroskopik effektni qanday tushuntirish mumkin?

a)

Nyutonning ikkinchi qonuni

b)

Inersiya momentining saqlanish qonuni

c)

Gravitasiya asosida

d)

Impuls momentining saqlanish qonuni

17.

Idish devori bilan absolyut elastik to'qnashganda gaz molekulasining tezligi qanday o'zgaradi?

a)

tezlik kamayadi

b)

faqat yo'nalisi o'zgaradi

c)

ortadi

d)

o'zgarmaydi

18.

Modda miqdori birligi . . . . .

a)

gramm

b)

kg/mol

c)

mol

d)

nyuton/mol

19.

Modda miqdorini hisoblash formulasini ko'rsating

a)

m / μ\mu

b)

V/N

c)

kT

d)

mμ\frac{m}{\mu} NA

20.

Р=const bo'lganda qaysi jarayon sodir bo'ladi?

a)

Izoxorik

b)

Izotermik

c)

Izobarik

d)

Adiabatik

21.

SI sistemasida bosimning o'lchov birligi . . . .

a)

Pa

b)

mm.sm.ust

c)

N/sm2

d)

kg / м2

22.

Ikki atomli molekulaning erkinlik darajasi . . . . teng

a)

1

b)

3

c)

5

d)

6

23.

𝑚 = 2𝑘𝑔; 𝑎 = 3 𝑚/𝑠 2 . Kuch qancha?

a)

3/2 N

b)

18 N

c)

2/3 N

d)

6 N

24.

𝐹 = 10 𝑁; 𝑎 = 2𝑚/𝑠 2 . Jism massasi qancha?

a)

5 kg

b)

40 kg

c)

20 kg

d)

To'g'ri javob yo'q

25.

Jism 5 sekundda 0 dan 20 m/s gacha o'zgardi.

Tezlanish qancha?

a)

100 m/s²

b)

2 m/s²

c)

4 m/s²

d)

10 m/s

26.

5 kg massali jism 2 m radiusli aylana bo'ylab 2 m/s tezlikda harakatlansa, markazga intiluvchi tezlanishni toping

a)

20 m/s2

b)

40 m/s2

c)

5m/s2

d)

10 m/s2

27.

SI sistemasida solishtirma issiqlik sig'imining birligi. . . . .

a)

J/ кmol К

b)

J/ К

c)

J/ кг K

d)

J / моль К

28.

Yuqoridan otilgan jism 10 sekunddan so'ng yerga qaytib tushdi. Ko'tarilish balandligini aniqlang

(g =10 m/s2 )?

a)

20 m

b)

100 m

c)

250 m

d)

125 m

29.

Termodinamikaning birinchi qonuni . . . .

a)

pV= RT

b)

Q=ΔU+AQ=\Delta U+A

c)

E = Ep + Ek

d)

Cp = Cv + R

30.

O'zgarmas 5 Pa bosimda 1 L gazning hajmi 1,5 marta ortganda qancha ish (J) bajariladi ?

a)

2,5

b)

75

c)

25 ⋅\cdot 10-3

d)

2,5 ⋅\cdot 10-3

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