Физика. 9 класс. Повторим формулы.

Физика. 9 класс. Повторим формулы.

9th Grade

15 Qs

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Физика. 9 класс. Повторим формулы.

Физика. 9 класс. Повторим формулы.

Assessment

Quiz

Physics

9th Grade

Hard

Created by

Инесса Максакова

Used 53+ times

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15 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Второй закон Ньютона

 s=υts=\upsilon t  

 m=ρVm=\rho V  

 F=maF=ma  

 F=kΔlF=k\Delta l  

2.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Центростремительное ускорение

a=v2Ra=\frac{v^2}{R}

v=2πrTv=\frac{2\pi r}{T}

v=1Tv=\frac{1}{T}

a=4π2RT2a=\frac{4\pi^2R}{T^2}

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Как найти массу тела, используя закон всемирного тягтения

Gm2FR2\frac{Gm_2}{FR^2}

Fm2GR2\frac{Fm_2}{GR^2}

FR2Gm2\frac{FR^2}{Gm_2}

FR2Gm2\frac{FR^2G}{m_2}

4.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Электромагнитные силы:

Сила упругости

Сила трения

Сила тяжести

Сила Архимеда

5.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Удельная теплота плавления

Q=cmΔtQ=cm\Delta t

λ=Qm\lambda=\frac{Q}{m}

Q=LmQ=Lm

λ=Qcm\lambda=\frac{Q}{cm}

6.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Выберите верные формулы

I=qtI=qt

U=AqU=\frac{A}{q}

R=ρlSR=\frac{\rho l}{S}

A=I2tRA=\frac{I^2t}{R}

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Формулы для описания равноускоренного движения

x=x0+υxtx=x_0+\upsilon_xt

ax=consta_x=const

sx=υ0xt+axt22s_{x=}\upsilon_{0x}t+\frac{a_xt^2}{2}

υx=υ0x+axt22\upsilon_x=\upsilon_{0x}+\frac{a_xt^2}{2}

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