PHYSICS WITHOUT ANY FOLLOWING

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All formulas · 48

AMechanics

Acceleration

a

\frac{\text{m}}{\text{s}^2}

9 · 10 classUnit: meters per second squared

a = \frac{∣ v - v _{0} ∣}{t}

9 class10 class

a_{ts} = \frac{v ^{2}}{R} = ω^{2} R

9 class10 class

AMCT and thermodynamics

Amount of heat

Q

\text{Dzh}

8 · 10 classUnit: joule

Q = m c Δ t

8 class10 class

Q = m λ

8 class10 class

AOscillations and waves

Amplitude

A, x_{m}

\text{m}

9 · 11 classUnit: meter

x = x_{m} cos (ω t)

9 class11 class

q = q_{m} cos (ω t)

11 class

AMechanics

Angular velocity

ω

\frac{\text{rad}}{\text{s}}

9 · 10 · 11 classUnit: radians per second

ω = \frac{φ}{t}

9 class10 class

ω = 2 π ν

9 class10 class11 class

BMechanics

Body impulse

p

\frac{\text{kg}\cdot\text{m}}{\text{s}}

9 · 10 classUnit: kilogram-meter per second

p = m v

9 class10 class

F = \frac{Δ p}{Δ t}

9 class10 class

Condition: In the formulas for changing momentum, F is the average resultant force, and FΔt is the impulse of the force. The moment of force is denoted by M and is used to describe the rotational action of a force.

BMechanics

Body weight

P

\text{N}

7 · 9 · 10 classUnit: newton

P = m (g \pm a)

9 class10 class

P = N

7 class9 class10 class

Condition: The sign depends on the direction of acceleration; P = N for a body on a support without vertical acceleration.

CElectricity

Current strength

I

\text{A}

8 · 10 classUnit: ampere

I = \frac{q}{t}

8 class10 class

I = \frac{U}{R}

8 class10 class

COscillations and waves

Cyclic frequency

ω

\text{s}^{-1}

9 · 11 classUnit: second to the minus first power

ω = \frac{2 π}{T}

9 class11 class

ω = 2 π ν

9 class11 class

DMechanics

Density

ρ

\frac{\text{kg}}{\text{m}^3}

7 · 10 classUnit: kilogram per cubic meter

ρ = \frac{m}{V}

7 class

ρ = m_{0} n

7 class10 class

DMechanics

Distance and path

S, l

\text{m}

7 · 9 · 10 classUnit: meter

S = v t

7 class9 class10 class

S = \frac{v _{0} + v}{2} t

9 class10 class

EMechanics

Efficiency

η

\%

7 · 8 · 10 classUnit: percentage

η = \frac{A _{useful}}{A _{input}}

7 class

η = \frac{Q _{useful}}{Q _{input}}

8 class10 class

EElectricity

Electric charge

q, Q

\text{Kl}

8 · 10 classUnit: pendant

q = I t

8 class10 class

F = k \frac{∣ q _{1} q _{2} ∣}{ε r ^{2}}

8 class10 class

EElectricity

Electric field strength

E

\frac{\text{V}}{\text{m}},\ \frac{\text{N}}{\text{Kl}}

8 · 10 classUnit: volt per meter, newton per coulomb

E = \frac{F}{q}

8 class10 class

E = k \frac{∣ q ∣}{ε r ^{2}}

10 class

EElectricity

Electrical capacity

C

\text{F}

10 · 11 classUnit: farad

C = \frac{q}{U}

10 class

C = ε_{0} ε \frac{S}{d}

10 class

EElectricity

Electrical resistance

R

\text{Om}

8 · 10 · 11 classUnit: ohm

R = \frac{U}{I}

8 class10 class

R = ρ \frac{l}{S}

8 class10 class

EElectricity

Electrical voltage

U

\text{V}

8 · 10 classUnit: volt

U = \frac{A}{q}

8 class10 class

U = I R

8 class10 class

EElectricity

Electromotive force

E

\text{V}

10 · 11 classUnit: volt

E = \frac{A _{st}}{q}

10 class

I = \frac{E}{R + r}

10 class

EMechanics

Elongation

Δ l

\text{m}

7 · 9 · 10 classUnit: meter

Δ l = l - l_{0}

7 class9 class10 class

F_{elastic} = k ∣ Δ l ∣

7 class9 class10 class

EMechanics

Energy

E, W

\text{Dzh}

7 · 9 · 10 · 11 classUnit: joule

E_{p} = m g h

7 class9 class10 class

E_{k} = \frac{m v ^{2}}{2}

7 class9 class10 class

FOptics

Focal length

F

\text{m}

8 · 11 classUnit: meter

\frac{1}{F} = \frac{1}{d} + \frac{1}{f}

8 class11 class

F = \frac{d f}{d + f}

8 class11 class

FOscillations and waves

Frequency

ν

\text{Gts}

9 · 11 classUnit: hertz

ν = \frac{n}{t}

9 class11 class

ν = \frac{1}{T}

9 class11 class

FMechanics

Friction coefficient

μ

\text{dimensionless}

9 · 10 classUnit: dimensionless quantity

μ = \frac{F _{fr}}{N}

9 class10 class

F_{fr} = μ N

9 class10 class

HMechanics

Height and depth

h

\text{m}

7 · 9 · 10 classUnit: meter

h = v_{0} t \pm \frac{g t ^{2}}{2}

9 class10 class

h = \frac{v ^{2} - v _{0} ^{2}}{\pm 2 g}

9 class10 class

IElectricity

Inductance

L

\text{Gn}

11 classUnit: Henry

E_{si} = L \frac{∣ Δ I ∣}{Δ t}

11 class

T = 2 π L C

11 class

LOptics

Lens magnification

Γ

\text{dimensionless}

8 · 11 classUnit: dimensionless quantity

Γ = \frac{H}{h}

8 class11 class

Γ = \frac{f}{d}

8 class11 class

LOptics

Lens power

D

\text{dpfr}

8 · 11 classUnit: diopter

D = \frac{1}{F}

8 class11 class

D = \frac{1}{d} + \frac{1}{f}

8 class11 class

MMagnetism

Magnetic flux

Φ

\text{Vb}

11 classUnit: weber

Φ = B S cos α

11 class

Φ = L I

11 class

MMagnetism

Magnetic induction

B

\text{Tl}

11 classUnit: Tesla

B = \frac{F _{m}}{I l}

11 class

Φ = B S cos α

11 class

MMechanics

Mechanical stress

σ

\text{Pa}

10 classUnit: pascal

σ = \frac{F}{S}

10 class

σ = E ∣ ε ∣

10 class

MMCT and thermodynamics

Molar mass

M

\frac{\text{kg}}{\text{mol}}

10 classUnit: kilogram per mole

M = M_{r} \cdot 1 0^{- 3} \frac{kg}{mol}

10 class

M = m_{0} N_{A}

10 class

MMCT and thermodynamics

Molecular concentration

n

\text{m}^{-3}

7 · 10 classUnit: reciprocal cubic meter

n = \frac{N}{V}

10 class

p = n k T

10 class

mMechanics

moment of force

M

\text{N}\cdot\text{m}

7 · 9 · 10 classUnit: newton meter

M = F l

7 class9 class10 class

POscillations and waves

Period

T

\text{s}

9 · 11 classUnit: second

T = \frac{t}{n}

9 class11 class

T = \frac{1}{ν}

9 class11 class

PElectricity

Potential

φ

\text{V}

10 classUnit: volt

φ = \frac{W _{p}}{q}

10 class

φ = k \frac{q}{ε r}

10 class

PMechanics

Power

P, N

\text{Vt}

7 · 8 · 9 · 10 classUnit: watt

P = \frac{A}{t}

7 class9 class10 class

P = F v

9 class10 class

PMechanics

Pressure

p

\text{Pa}

7 · 10 classUnit: pascal

p = \frac{F}{S}

7 class

p = ρ g h

7 class

QMCT and thermodynamics

Quantity of substance

ν

\text{mol}

10 classUnit: mole

ν = \frac{m}{M}

10 class

ν = \frac{N}{N _{A}}

10 class

Condition: The internal energy formula U = 3νRT/2 is given for a monatomic ideal gas.

ROptics

Refractive index

n

\text{dimensionless}

8 · 11 classUnit: dimensionless quantity

n = \frac{s i n α}{s i n γ}

8 class11 class

n = \frac{v _{1}}{v _{2}}

8 class11 class

RElectricity

Resistivity

ρ

\text{Om}\cdot\text{m}

8 · 10 classUnit: ohm meter

R = ρ \frac{l}{S}

8 class10 class

ρ = ρ_{0} (1 + α t)

10 class

SMCT and thermodynamics

Specific heat capacity

c

\frac{\text{Dzh}}{\text{kg}\cdot\text{K}}

8 · 10 classUnit: joule per kilogram kelvin

Q = m c Δ t

8 class10 class

Q = m c Δ T

8 class10 class

SMechanics

Speed

v

\frac{\text{m}}{\text{s}}

7 · 9 · 10 · 11 classUnit: meter per second

v = \frac{S}{t}

7 class9 class10 class

v_{sr} = \frac{S}{t}

7 class9 class10 class

SMechanics

Spring stiffness

k

\frac{\text{N}}{\text{m}}

7 · 9 · 10 · 11 classUnit: newton per meter

F_{elastic} = k ∣ Δ l ∣

7 class9 class10 class

E_{p} = \frac{k ( Δ l ) ^{2}}{2}

9 class10 class

SMechanics

Strength

F

\text{N}

7 · 9 · 10 · 11 classUnit: newton

F = m a

9 class10 class

F_{elastic} = k ∣ Δ l ∣

7 class9 class10 class

TMCT and thermodynamics

Temperature

T, t

\text{K},\ ^\circ\text{C}

10 classUnit: kelvin, degree Celsius

T = 273 + t

10 class

⟨ E ⟩ = \frac{3}{2} k T

10 class

Condition: The temperature increments are equal: ΔT in Kelvin is numerically equal to Δt in degrees Celsius.

TMechanics

Time

t, τ

\text{s}

7 · 8 · 9 · 10 · 11 classUnit: second

t = \frac{S}{v}

7 class9 class10 class

t = \frac{∣ v - v _{0} ∣}{a}

9 class10 class

WOscillations and waves

Wavelength

λ

\text{m}

9 · 11 classUnit: meter

λ = v T

9 class11 class

v = λ ν

9 class11 class

WMechanics

Weight

m

\text{kg}

7 · 8 · 9 · 10 · 11 classUnit: kilogram

m = ρ V

7 class

F = m a

9 class10 class

WMechanics

Work

A

\text{Dzh}

7 · 8 · 9 · 10 classUnit: joule

A = F S cos α

9 class10 class

A = q U

8 class10 class