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Chemistry/Physics > Physics Equations for PAT > Flashcards

Physics Equations for PAT Flashcards

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1
Q

Photon Energy

A

E = hf

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2
Q

Photoelectricity

A

Energy = Work Function + Ek(max)

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3
Q

de Broglie Wavelength

A

Wavelength = Planck’s constant / Momentum

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4
Q

First Harmonic

A

Frequency = Length/2 x (Tension / Mass per Length)^1/2

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5
Q

Fringe Spacing

A

Fringe Width = Wavelength x Distance to Screen / Slit Spacing

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6
Q

Diffraction Grating

A

Slit Spacing x sin(theta) = Order of Maxima x Wavelength

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7
Q

Critical Angle

A

sin(Critical Angle) = Index2 / Index1

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8
Q

Moment

A

Force x Distance

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9
Q

SUVAT without a

A

s = (u + v)/2 x t

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10
Q

Impulse

A

Force = Change in Momentum / Time

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11
Q

Work done with an angle

A

Work done = Force x Displacement x cos(theta)

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12
Q

Hooke’s Law

A

Force = Extension x Spring Constant

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13
Q

Power with velocity

A

Power = Force x Velocity

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14
Q

Young Modulus

A

Force x Length / Area x Extension

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15
Q

Energy in a Spring

A

Energy = 1/2 x Force x Extension OR
Energy = 1/2 x Spring Constant x Extension^2

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16
Q

Voltage and Energy

A

Potential Difference = Work Done / Charge

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17
Q

Resistivity

A

Resistivity = Resistance x Area / Length

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18
Q

Power with Electricity

A

V I = I^2 R = V^2 / R

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19
Q

Electromotive Force

A

emf = I (R + r)

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20
Q

Angular Velocity

A

Velocity / Radius = 2pi x Frequency

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21
Q

Centripetal Acceleration

A

a = v^2 / r = omega^2 r

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22
Q

Centripetal Force

A

F = mv^2 / r = m x omega^2 x r

23
Q

Acceleration in SHM

A

omega^2 x r
v^2 / r

24
Q

Displacement in SHM

A

x = Amplitude cos(omega t)

25
Q

Speed in SHM

A

v = omega (A^2 - x^2)^1/2

26
Q

Maximum Velocity in SHM

A

v = omega x amplitude

27
Q

Maximum Acceleration in SHM

A

a = omega^2 x Amplitude

28
Q

Mass Spring System Equation

A

Period = 2pi (m/k)^1/2

29
Q

Simple Pendulum Equation

A

Period = 2pi (l/g)^1/2

30
Q

Gravitational Field Strength

A

g = F / m = - GM / r^2

31
Q

Gravitational Potential

A

V = -GM/r

32
Q

Work Done in a Gravitational Field

A

W = m x change in V

33
Q

Gravitational Field Strength + Gravitational Potential

A

g = change in V / change in r

34
Q

Force between 2 Point Charges

A

F = 1 / 4pi epsilon x Q1 Q2 / r^2

35
Q

Force on a Charge

A

Force = Charge x Field Strength
F = Q E

36
Q

Electric Field Strength E (UNIFORM FIELD)

A

E = V / d

37
Q

Electric Potential V

A

V = 1/4pi epsilon x Q / r

38
Q

Electric Field Strength (RADIAL FIELD)

A

E = 1/4pi epsilon x Q/r^2

39
Q

Transformer Equation

A

Np/Ns = Vp/Vs

40
Q

Kinetic Energy of a Gas Molecule

A

1/2 m (crms)^2
3/2 k T
3RT / 2Na

41
Q

Capacitance

A

C = Q / V

42
Q

Kinetic Theory Model

A

pV = 1/3 N m (crms)^2

43
Q

Energy to Change State

A

Q = l m

44
Q

Force on a Current

A

F = B I L

45
Q

Force on a Moving Charge

A

F = B Q v

46
Q

Magnetic Flux

A

B A

47
Q

Efficiency of a Transformer

A

Is Vs / Ip Vp

48
Q

Radioactive Decay

A

N/t = -lambda N0
N = N0 e^-lambda t

49
Q

Activity

A

A = lambda N

50
Q

Half Life

A

T = ln2 / lambda

51
Q

Nuclear Radius

A

R = R0 A^1/3

52
Q

Sum of an Arithmetic Series

A

Sn = n/2 ( a + an)

53
Q

Chord Area

A

1/2 r^2 (theta - sin(theta))

54
Q
A

Chemistry/Physics (7 decks)

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