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# SAT2物理公式總結

2017-07-17 17:53:26 來源：新東方在線

新東方在線SAT頻道為大家帶來SAT2物理公式總結一文，希望對大家SAT備考有所幫助。更多精彩盡請關注新東方在線SAT頻道!

SAT2物理熱力學常見公式：

Heat added or emoved: Q = m·c·ΔT

Change in Internal Energy: ΔU = Q - W

Boyle's Law: P1V1 = P2V2

Charles's Law: V1/T1 = V2/T2

Efficiency of a heat engine(%): E = (W/Qhot)·100

SAT2物理光波學常見公式：

Snell's Law: n1·sin(θ1) = n2·sin(θ2)

Wave speed: v = λ·f

Velocity of light: v = c/n

Magnification: m = -di/do

Law of Reflection: θreflection = θincidence

Mirror and lens equation: 1/d1 + 1/d1 = 1/f

SAT2物理電磁學常見公式：

Electric Fields and Forces Formulas

Coulomb's Law: F = k·q1·q1/r2

Electric field of a charge q: E = k·q/r2

Work done by electric field: W = q·E·d

Electric field between two metallic plates: E = V/d

DC Circuits Formulas

Ohm's Law: V = I·R

Power dissipated in a resistor: P = I·V = V2/R = R·I2

Resistance: R = ρ·l/A

Equivalent resistance of series resistors: Rs = R1 + R2 +...

Equivalent resistance of parallel resistors: 1/Rp = 1/R1 + 1/R2 +...

Equivalent capacitance of series capacitors: 1/Cs = 1/C1 + 1/C2 +...

Equivalent capacitance of parallel capacitors: Cp = C1 + C2 +...

Magnetic Fields and Forces Formulas

Magnetic force on a moving charge: F = q(v x B) = q·v·B·sin(θ)

Magnetic force on a current carrying wire: F = I·l·B·sin(θ)

Magnetic field created by a current: B = (μo/2π)·(I/r)

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SAT2物理常見公式

1. Physics Formulas – Mechanics

Kinematics Formulas

The Kinematic Equations apply to one-dimensional motion with constant acceleration from point 1, situated d1 from a point of reference to point 2, situated d2 from the same point of reference. v1 is the velocity at point 1 and v2 is the velocity at point 2. Rotational kinematics Relations between angular and linear variables 2. Thermodynamics 3. Waves and Optics 4. Modern Physics 5. Electricity and Magnetism SAT2物理力學公式大全

Physics Formulas - Mechanics

Kinematics Formulas

The Kinematic Equations apply to one-dimmensional motion with costant acceleration from point 1, situated d1 from a point of reference to point 2, situated d2 from the same point of reference. v1 is the velocity at point 1 and v2 is the velocity at point 2.

v2 = v1 + a·t

d2 = d1 + (v1 + v2)·t/2

d2 = d1 + v1·t + a·t2/2

d2 = d1 + v2·t - a·t2/2

v22 = v12 + 2a(d2 - d1)

Average velocity: vav = Δd/Δt

Average acceleration: aav = Δv/Δt

Rotational kinematics equations with constant angular acceleration:

ω2 = ω1 + α·t

Φ2 = Φ1 + (ω1 + ω2)·t/2

Φ2 = Φ1 + ω1·t + α·t2/2

Φ2 = Φ1 + ω2·t - α·t2/2

ω22 = ω12 + 2α(Φ2 - Φ1)

Average angular velocity: ωav = Δθ/Δt

Average angular acceleration: αav = Δω/Δt

Frequency: f = ω/2π

Period: T = 2π/ω

Relations between angular and linear variables:

l = Φ·r

v = ω·r

a = α·r

Dynamics Formulas

Pressure: P = F/A

Newton's Second Law: F = m·a

Force of kinetic friction: Ff = μ·N

Hooke's Law: F = -k·x

Centripetal Force: Fc = m·v2/R

Centripetal acceleration: ac = v2/R

Work, Energy, Conservation Laws Formulas

Work: W = F · d = Fdcos(α)

Potential Energy: PE = m·g·h

Kinetic Energy: KE = m·v2/2

Mechanical Energy: E = KE + PE

Instantaneous Power: P = F·v

The Work-Energy Theorem: W = ΔKE

Gravitation Formulas

Newtonian gravity formula: Fg = G·m·M/R2

Kepler's Third Law: T2/a3 = ct.

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SAT2物理黃金公式   以上就是新東方在線SAT頻道為你帶來的SAT2物理公式總結，更多精彩敬請關注新東方在線SAT頻道。

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