Download PHYSICS-FORMULA SHEET

PHYSICS-FORMULA SHEET
Measurement
distance
displacement
time
speed
velocity
acceleration
“Change in”
subscript f =“Final ____”
subscript i or o = “initial _____“
Acceleration due to gravity (9.8 m/s2)
Mass
Height
Kinetic Energy
Potential Energy
Mechanical Energy
Work
Power
Force (Many types of Forces)
Net Force
Weight
Momentum
Impulse
Charge
Voltage
Current
Resistance
m
Hz
s
Temperature
Pressure
Volume
Variable
Unit name written out
Unit abbreviation
x or d or h
x or d
t
s
v
a
Δ
meters
meters
seconds
miles/hour
meters/second
Meters/second squared
---------------------------------------Meters/second squared
kilograms
meters
Newton*meter or joules
Newton*meter or joules
Newton*meter or joules
Newton*meter or joules
Watts
Newton (kg*m/s2)
Newton
Newton
Kilograms * meters/second
Newtons*second
Coulombs
Volts
Amperes (Amps)
Ohms
λ
f
T
Kelvin (°C or °F)
atm (kPa or )
Liters (ml or cm3)
m
m
s
mi/hr
m/s
m/s2
------------------------------------------------------------m/s2
Kg
m
Nm or J
Nm or J
Nm or J
Nm or J
W
N
N
N
Kg m/s
Ns
C
Voltage
Current
Ω
Wavelength
Frequency
Period
K (° )
atm (kPa or )
L (ml or cm3)
f
i or o
g
m
h
KE or EK
PE or EP
ME or EM
W
P
F?
Fnet
W or Fg
p
Δp
q
V
I
R
meters
Hertz
seconds
T
p
v
Semester 1
Velocity= displacement = v = Δd = df - di
Time
Δt
t f - ti
Speed = distance/time
or d = vt
Speed
s = d/t
Pythagorean Theorem
a2 + b2 = c2
Average speed
Slope
Avg s = total distance
Total time
rise = Δ y = y2 – y1
run Δ x
x2 - x 1
Kinetic Energy
Potential Energy
EK (KE) =1/2 mv2
Work- Energy
Acceleration
EP (PE) = m g h
Epg (PEg) = m (9.8) h
Work
W = ΔE
Wfriction = ΔME
W=Fd
Other Kinematic
Equations
d = vit + ½ at2
vf2 = vi2 + 2ad
vf = vi + at
a = Δv = vf - vi
t
t
Mechanical Energy
MEi = MEf
PEi + KEi = PEf + KEf
Power
P = W/t
P = W = Fd = mgd = Fv
t
t
t
Force
Fnet = ma
Or Fg = m g
W=mg
g = 9.8m/s2
Momentum
p=mv
(1hp=746W)
Impulse
Δp = Fnet t
Fnet(t) = m(Δv)
Fnet(t) = m(vf - vi)
Conservation of Linear
Momentum
m1v1 = m2v2 (1 object)
m1v1 + m2v2 = m1v1' + m2v2'
(if 2 objects)
Electricity
V= I R
Current
I = q/ t
Electrons = -1.6x10-19C
Electric Power
P=IV
Semester 2
Waves
v=f
f = 1/T
v=/T
Sound
Speed of Sound 340 m/s
Light
Electrostatics
Electrons = -1.6x10-19C
Total Charge=(#of electrons )
(charge of 1 electron)
Series Circuit
Voltage (v)
Vt =V1+V2…
Parallel
Circuit
Vt =V1 =V2 …
Current (I)
It=I1=I2…
It = I1 + I2 …
Resistance (R)
RT = R1+R2…
1 = 1 +1 +1
Req R1 R2 R3
c=f
c = 3 x108m/s speed of light in vacuum
index of refraction = (speed of light in
vacuum/ speed of light in material)
n1sin(θ1) = n2sin(θ2)
n=c/v
Gas Laws
P 1V 1 = P 2V 2
P 1V 1 = P 2V 2
T1
T2
SP = 1atm
K = oC + 273
o
F = 1.8 (oC) + 32
o
C = (oF – 32)/1.8
V1 = V2
T1 = T2
P1 = P2
T1 T2
ST = 273K