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427706
General Physics Final
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Mapa Mental sobre General Physics Final, creado por jvogan el 09/12/2013.
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General Physics Final
Chapter 14
Thermodynamics
0th law
Ta=Tb=Tc
focuses on energy
conservation of energy
transfer of energy
Temperature & Heat
based on hotness or coldness
thermal equilibrium
Ta=Tb=Tc
heat flow
heat energy
flows between two systems
Joule
J
Calorie
1 cal=4.186J
=1000 calories
3 scales
fahrenheit
freeze at 32
boil at 212
Tf=9/5tc+32
Kelvin
freeze at 273.15
boil at 373.14
Tk=Tc+273.15
absolute 0 at 0
Celsius
freeze at 0
boil at 100
Phases of Matter
Solid
atoms held in place by forces from next atom
Liquid
atoms able to move about
Gas
density lower than liquid
Internal Energy U
phase change
phase diagram
melting
freezing
evaporation
sublimation
heat capacity = q/delta(t)
specific heat = c=Q/mdelta(T)
latent heat of fusion
latent heat of vaporization
Chapter 15
Gasses and Kinetic Theory
Gas Laws
Ideal Gas Law
dilute gass
Pv=nRT
R=8.31J/mole*K
n=number of moles present
Kb=Boltzmanns Constant
1.38e-23J/K
Avogadros Law
V proportional to N
Boyles Law
P proportional to 1/v
for constant temp
Charles law
V proportional to T
for constant pressure
Gay-Lussacs Law
P proportional to T
for constant volume
Kinetic Theory
3/2KbT
Molecular Speeds
v=sqrt((3KbT/M))
Avogadros Number
Na=6.023e23
Pure number
Number of particles in a mole
atomic mass
M=M/Na
Chapter 16
Thermodynamics
Quantities Used to describe systems
Pressure
Volume
Temperature
Four Laws
Zeroth Law
Based on idea of thermal equilibrium
If ta=tb and tb=tc then ta=tc
First Law
U=3/2KbT or 3/2nRT
Thermal Reservoir
Work
W=Padeltax=PdeltaV
Thermodynamic Processes
Isobaric
Constant Pressure
W=PdeltaV=P(V1-V2)
IsoThermal
Constant Temperature
W=nRTln(Vf/Vi)
Expansion
Compression
Adibiatic
Heat Q=0
P proportional to 1/Vf
Isochoric
Constant volume
W=PdeltaV=0
2nd law
Heat cannot flow from cold to hot
Heat Engine
Qh=W
Carnot Engine
Reversible Heat Engine
Qc must be low
Qc/Qh=Tc/Tn
e=1-Tc/th
Exam 1
Chapter 2
Inertia
Newtons Laws of Motion
Motion
Velocity
Chapter 3
Normal Forces
Friction
Velocity Vs Time
Chapter 4
Projectile Motion
Friction
Kinetic
Static
Newtons Laws
First Law
2nd law
F=ma
3rd law
Exam 2
Chapter 8
Torque
Equilibrium
Rotational Inertia
Chapter 6
Energy
Conservation of Energy
Work
Joule Unit
Can be + or -
1d motion
w=fdeltax
scalar
Chapter 5
Gravitation
Circular Motion
Period of Motion
t=2pi(r)/V
acceleration not constant
centripital acceleration
center seeking
magnitude
ac=v^2/r
Chapter 7
Center of Mass
Impulse
collisions
momentum
p=mv
kgm/s
Exam 3
Chapter 10
Buoyancy
Archimedes Principle
applies to objects immersed in fluids
floating
fully immersed
apparent weight
buoyant force
Fb=p(rho)*g*V
Pressure and Density
Patm=1.01x10^5 Pa
Pascal Unit
1pa=1N/m^2
density
p(rho)=m/v
kg/m^3 unit
force perpendicular to area
a=area
p=f/a
f=pa
f=magnitude
Pascals Principle
hydraulic lift
Fl=Fr*(Al/Ar)
Effects of Gravity
specific gravity
determines if object will sink or float
ration of the density of a substance to the density of water
Continuity Equation
VLAL=VrAr
Flow rate=Q=vA
m^3/s unit
Bernoulli's Equation
gravitational potential energy
P1+1/2pv1^2+pgh1=P2+1/2pv2^2+phg2
Chapter 12
Waves
crest
maximum positive y displacement
trough
maximum negative y displacement
f=1/T
wavelength
y=Asin(spift-(2pix/wavelength))
A is amplitude
speed of wave
v=deltax/deltaT=wavelength/T=f*wavelength
Chapter 11
Hookes Law
Fspring=-kx
k=spring constant
x=amount of spring stretch
equilibrium is x=0
F/a=Y(deltaL/L0)
stress=f/a
strain=deltaL/L0
Spring mass oscillator
Simple pendulum
mgsin(theta)
f=1/2pi*sqrtg/l)
1/2mv^2max=KEmax=Pemax=1/2kA^2
Period T
T=1/F
Seconds (s)
Frequency F
Hertz Hz
F=1/T
Harmonic Motion
y=Asin(2pift)
y component=Asintheta=AsinometaT
x component=Acostheta=AcosomegaT
theta=2pi=omegaT
T=2pi/omega and f=omega/2pi
omega(w) also called angular frequency
Youngs modulus
Shear modulus
F/A=S(deltaX/L0)
Bulk Modulus
deltaP=-B(deltaV/V0)
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