Download PHYSICS-FORMULA SHEET

PHYSICS-FORMULA SHEET
Unit abbreviation
Unit name written out
Variable
m
m
s
mi/hr
m/s
m/s2
------------------------------------------------------------m/s2
m
Kg
N
N
N
N
--------------------Kg m/s
Ns
m
m
Nm or J
Nm or J
Nm or J
Nm or J
W
C
N/C
meters
meters
seconds
miles/hour
meters/second
Meters/second squared
---------------------------------------Meters/second squared
meters
kilograms
Newtons
Newtons
Newtons
Newtons
-------------Kilograms * meters/second
Newtons*second
meters
meters
Newton*meter or joules
Newton*meter or joules
Newton*meter or joules
Newton*meter or joules
Watts
Coulomb
Newton/Coulomb
x or d or h or r
x or d
t
s
v
a
Δ
f
i or o
g
R
m
Fnet
Fg
Ff
FN
µ
p
Δp
C
r
EK
EP
ES
W
P
q
E
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)
Range (total dx)
Mass
Net Force (total force)
Weight
Force of Friction
Normal Force
“mu” Coefficient of Friction
momentum
impulse
circumference
radius
Kinetic Energy
Potential Energy
Spring Energy
Work
Power
Charged Particle
Electric Field
Semester 1
Speed = distance/time
Golden Kinematics #2
Velocity= displacement = v = Δx = xf - xi
Time
Δt
tf - t i
or d = vt
Golden Kinematics #3
Acceleration
d = vit + ½ at2
vf2 = vi2 + 2ad
Range Formula
Pythagorean Theorem
R = v2sin 2θ
g
a2 + b2 = c2
Speed
s = d/t
a = Δv = vf - vi
t
t
Quadratic Formula
x = -b ±√( b2 – 4ac)
2a
Golden Kinematics #1
vf = vi + at
SOH CAH TOA
Sinθ = o Cosθ = a Tanθ = o
h
h
a
Horizontal Kinematics
for Projectiles
Vf=vi=v
Dx = vt
Vertical (Kinematics) for
Projectiles
Vf=Vi+at
Vf2 = Vi2 +2ad
dy = vit + ½ at2
Hooke’s Law
Newton’s 2nd Law
Fs =k x
Mass to Weight
(on Earth)
Fnet = ma
Force of Friction
Ff =µ FN
Fg = m9.8
Conservation of Linear
Momentum
p = m(Δv)
Impulse
Imp = Fnett
Δp = Fnet(t)
Circumference
C=2πr
Motion in circles speed
V=2πr
t
Centripetal Force
Fc = mv2
r
Universal Gravitational
Law
FG=G m1m2
r2
Kinetic Energy
Potential Energy
Centripetal
Acceleration
ac = v2
r
Spring Energy
Momentum
m1v1 + m2v2 = m1v1' + m2v2'
Semester 2
EK (KE) =1/2 mv2
EP (PE) = m g h
ES (SE) =1/2 kx2
Ep (PE) = m (9.8) h
G = 6.67x10-11 Nm2/kg2
Work- Energy
W = ΔE
Work
W=Fd
W = F(cos θ)d
Wfriction = ΔME
(F and d must be in same direction)
Power
P = W/t
P = W = Fd = mgd = Fv
t
t
t
(1hp=746W)
Coulomb’s law
Fe = k Q1Q2
d2
Electrons = -1.6x10-19C
Protrons = 1.6x10-19C
k = 9.0 x 109
Other electrostatics
formulas…
E = kq/d2
E = F/q
Mechanical Energy
MEi = MEf
PEi + KEi = PEf + KEf