Formula Flashcards

Beat Brandon

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1
Q

Formula modules / 5

A
Foundations of physics
Forces and Motion
Electrons, waves and photons
Newtonian world and astrophysics
Particles and medical physics
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2
Q

Vectors equations / 2

A

Fx = Fcos(theta)

Fy=Fsin(theta)

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3
Q

Modules in Forces and motion

A
Uniformly accelerated motion/suvats
Force
Turning effects
Density
Pressure
Work, energy and power
Springs and materials
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4
Q

Uniformly accelerated motion (force and motion)

A

v=u+at
s=1/2(u+v)t
s=ut+1/2at^2
v^2=u^2+2as

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5
Q

Force (force and motion)

A

F=(delta p)/(delta t) =I/t

p=mv

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6
Q

Turning effects (force and motion)

A
Moment = Fx
Torque = Fd
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7
Q

Density (force and motion)

A

rho=m/v

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8
Q

Pressure (force and motion)

A

p=F/A

p=hrhog

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9
Q

Work energy and power (force and motion)

A

W=Fxcos(theta)
effeciency = (useful energy output)/(total energy output) *100%
P=W/t
P=Fv

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10
Q

Springs and materials (force and motion)

A
F=kx
E=1/2Fx , E=1/2kx^2
sigma = F/A
epsilon = x/L
E=sigma/epsilon
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11
Q

Name topics in mod 4 electrons waves and photons

A
Charge
Current
Work done
resisitance and resistors
Power
Internal resisitance
Potential divider
Waves
Refraction
Quantum physics
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12
Q

Charge (electrons waves and photons)

A

delta q = I * delta t

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13
Q

Current (electrons waves and photons)

A

I = Anev

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14
Q

Work done (electrons waves and photons)

A

W= Vq, W=epsilon Q , W=VIt

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15
Q

resitance and resistors (electrons waves and photons)

A

R=(rho * L)/A
R= R1 +R2 +…
1/R = 1/R1 +1/R2 +…

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16
Q

Power (electrons waves and photons)

A

P= VI, P=I^2V , P=V^2/R

17
Q

Internal resitance (electrons waves and photons)

A

epsilon = I(R+r) , epsilon = V+ Ir

18
Q

Potential divider (electrons waves and photons)

A

V out = R2/(R1+R2) *V in

V1/V2=R1/R2

19
Q

Waves (electrons waves and photons)

A

v=f*lambda
f=1/T
I=P/A
Lambda = ax/D

20
Q

Refraction (electrons waves and photons)

A

n=c/v
nsin(theta) = constant
sinC = 1/n

21
Q

Quantum physics (electrons waves and photons)

A

E=hf, E=gc/lambda
Hf = phi + KEmax
lambda = h/p

22
Q

Topics in mod 5 newtonian world and astrophysics

A
Thermal physics
Ideal gases
Circular motion
oscillations
gravitational field
Astrophysics
Cosmology
23
Q

Thermal physics ( newtonian world and astrophysics)

A

E=mc*delta theta

E=mL

24
Q

Ideal gases ( newtonian world and astrophysics)

A

pV=Nkt , pV=nRT
pV=1/3N*bar(c^2)
1/2mbar(c^2)=3/2kT
E=3/2kT

25
Q

Circular motion ( newtonian world and astrophysics)

A

Omega = 2pi/T , omega = 2pif
v = omega
r
a=v^2/r , a= (omega)^2r
F=mv^2/r , F=m
omega^2*r

26
Q

Oscillations ( newtonian world and astrophysics)

A

Omega = 2pi/T , omega = 2pif
a= -(omega)^2
x
x=Acos(omegat), x=Asin(omegat)
v= +-omega*root(A^2-x^2)

27
Q

Gravitational field ( newtonian world and astrophysics)

A
g=F/m
F=-GMm/r^2
g=-GM/r^2
T^2 = 4pi^2/GM * r^3
Vg = -GM/r
energy = -GMm/r
28
Q

Astrophysics ( newtonian world and astrophysics)

A

hf=delta E, hc/lambda = delta E
dsin(theta) =nlambda
lambda max is proportional to 1/T
L=4pi
r^2sigmaT^4

29
Q

Cosmology ( newtonian world and astrophysics)

A

(delta lambda)/lambda ~(delta f)/f ~c/v
p=1/d
v=H0 *d
t=H0^-1

30
Q

topics in particles and medical physics

A
Capacitance and capacitors
electric field
magnetic field
electromagnetism
radius of a nucleus
radioactivity
Einsteins mass-energy equations
attenuation of X-rays
ultrasound
31
Q

Capacitance and capacitors (particles and medical physics)

A
C=Q/V
C=(epsilon0*A)/d
C=4*pi*epsilon0R
C=C1 +C2 ...
1/C=1/C1+1/C2 ...
W=1/2QV, W=1/2 Q^2/C , W= 1/2 V^2C
tau = CR
x = x0e^(-t/CR)
x = x0(1-e^(-t/CR))
32
Q

Electric field (particles and medical physics)

A
E=F/Q
F=Qq/(4*pi*epsilon0*r^2)
E=Q/(4*pi*epsilon0*r^2)
E=V/d
V=Q/(4*pi*epsilon0*r)
Energy=Qq/(4*pi*epsilon0*r)
33
Q

Magnetic field (particles and medical physics)

A

F=BILsin(theta)

F=BQv

34
Q

Electromagnetism (particles and medical physics)

A
phi = BAcos(theta)
epsilon = -(delta(Nphi)/delta t)
ns/np = Vs/Vp = Ip/Is
35
Q

radius of a nucleus (particles and medical physics)

A

R=r0A^1/3

36
Q

Radioactivity (particles and medical physics)

A

A= -lambdaN, delta N/delta t = -lamdaN
lambdat1/2 = ln(2)
A=A0
e^(-lamdat)
N=N0
e^(-lamda*t)

37
Q

Einsteins mass energy equation (particles and medical physics)

A

delta E = delta m *c^2

38
Q

attentuation of x-rays (particles and medical physics)

A

I=I0e^(-mux)

39
Q

Ultrasound (particles and medical physics)

A

Z= rho*c
Ir/I0 = (Z2-Z1)^2/(Z2+Z1)^2
(delta f)/f = 2vcos(theta)/c