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Формулы ОГЭ

Authored by Anya Bondarevskaya

Physics

12th Grade

Used 5+ times

Формулы ОГЭ
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28 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Движение вверх

x=x0+vtx=x_0+vt
S=vtS=vt
a=0a=0
v=constv=const

v=v0+atv=v_0+at
x=x0+v0t+at22x=x_0+v_0t+\frac{at^2}{2}

S=v0t+at22S=v_0t+\frac{at^2}{2}

a=consta=const

v=v0+gtv=v_0+gt

h=v0t+gt22h=v_0t+\frac{gt^2}{2}

v=v0−gtv=v_0-gt

h=v0t−gt22h=v_0t-\frac{gt^2}{2}

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Электрические цепи

q0=q1+q2+...+qnnq_0=\frac{q_1+q_2+...+q_n}{n}

I=qtI=\frac{q}{t} ;
R=ρlSR=\frac{\rho l}{S} ; I=URI=\frac{U}{R} ; P=UI=U2R=I2RP=UI=\frac{U^2}{R}=I^2R ; Q=Pt=UIt=I2Rt=U2RtQ=Pt=UIt=I^2Rt=\frac{U^2}{R}t

I1=I2=IобщI_1=I_2=I_{общ} U1+U2=UобщU_1+U_2=U_{общ} R1+R2=RобщR_1+R_2=R_{общ}

I1+I2=IобщI_1+I_2=I_{общ} U1=U2=Uобщ U_1=U_2=U_{общ\ } 1R1+1R2=1Rобщ\frac{1}{R_1}+\frac{1}{R_2}=\frac{1}{R_{общ}}

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Вращательное движение

λ=VT=Vν\lambda=VT=\frac{V}{\nu} ; T=2πlg2T=2\pi\sqrt[2]{\frac{l}{g}} ; T=2πmk2T=2\pi\sqrt[2]{\frac{m}{k}}

T=tNT=\frac{t}{N} ; ν=1T\nu=\frac{1}{T} ; T=1νT=\frac{1}{\nu} ; ω=2πT\omega=\frac{2\pi}{T} ; V=ωRV=\omega R ; V=2πRTV=\frac{2\pi R}{T} ; aцс=V2Ra_{цс}=\frac{V^2}{R}

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Равномерное движение

x=x0+vtx=x_0+vt
S=vtS=vt
a=0a=0
v=constv=const

v=v0+atv=v_0+at
x=x0+v0t+at22x=x_0+v_0t+\frac{at^2}{2}

S=v0t+at22S=v_0t+\frac{at^2}{2}

a=consta=const

v=v0+gtv=v_0+gt

h=v0t+gt22h=v_0t+\frac{gt^2}{2}

v=v0−gtv=v_0-gt

h=v0t−gt22h=v_0t-\frac{gt^2}{2}

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Тепловые явления

η=AпAз⋅100%\eta=\frac{A_п}{A_з}\cdot100\%

Q=cmΔtQ=cm\Delta t ; Q=λmQ=\lambda m ; Q=LmQ=Lm ; Q=qmQ=qm ; Q1+Q2+...+Qn=0Q_1+Q_2+...+Q_n=0

p→=mv→\overrightarrow{p}=m\overrightarrow{v} ; Δp→=F→Δt\Delta\overrightarrow{p}=\overrightarrow{F}\Delta t ; p→1+p2→=p11→+p22→\overrightarrow{p}_1+\overrightarrow{p_2}=\overrightarrow{p_{11}}+\overrightarrow{p_{22}} ; Eк=mv22E_к=\frac{mv^2}{2} ; Eп=mghE_п=mgh ; Eп.п=kΔx22E_{п.п}=\frac{k\Delta x^2}{2} ; Eпол=Eк+EпE_{пол}=E_к+E_п ; Eпол1=Eпол2E_{пол1}=E_{пол2} ; Q=E1−E2Q=E_1-E_2 ; A=E2−E1A=E_2-E_1 ; N=AtN=\frac{A}{t}

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Магнетизм

M=FlM=Fl ; M1=M2M_1=M_2

Fа=BILsin⁡αF_а=BIL\sin\alpha ; Fл=qvBsin⁡αF_л=qvB\sin\alpha

Fупр=kΔxF_{упр}=k\Delta x ; Fтр=μNF_{тр}=\mu N ; A=FScos⁡α A=FS\cos\alpha\ ; Fт=mgF_т=mg ; F1→+F2→+...+Fn→=ma\overrightarrow{F_1}+\overrightarrow{F_2}+...+\overrightarrow{F_n}=ma

1F=1d+1f\frac{1}{F}=\frac{1}{d}+\frac{1}{f} ; D=1FD=\frac{1}{F}

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Влажность воздуха

ϕ=ρρн⋅100%=nnн⋅100%=ppн⋅100%\phi=\frac{\rho}{\rho_н}\cdot100\%=\frac{n}{n_н}\cdot100\%=\frac{p}{p_н}\cdot100\%

P=FSP=\frac{F}{S} ; P=ρжghP=\rho_жgh ; Pл=PпрP_л=P_{пр} ; ρ=mV\rho=\frac{m}{V}

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