Term

Definition
M= mv
Momentum=mass x velocity 


Term

Definition
E_{T} =_{ }E_{k }+ E_{p}
or
E_{k }= 1/2 mv^{2}
or
Ep = mgh 


Term

Definition
P=Δw/Δt
Power = Change in work/change in time 


Term

Definition
I = Q/t
Current = Charge flow/secs
Amperes=Coulumbs/secs 


Term

Definition
V=IR
Voltage = Current/Resistance 


Term
Resistors in series
Resistors in Par. 

Definition
R_{eq}= R_{1} + R_{2 ..}
1/R_{eq }+ 1/R_{1 + }1/R_{2} 


Term

Definition
Force = ma
Force= mass x acceleration 


Term

Definition
P= F/A
Pressure = Force / Unit of Area 


Term

Definition
ΔP = ρgΔh
Change in pressure = density x gravity x Δ in height 


Term

Definition
ρvA = constant
Density x velocity of fluid x Xsectional area =constant 


Term

Definition
Σi = 0 at a junction
ΣΔV= 0 in a loop
V= voltage
sum of currents = 0
sum of voltage changes in a loop=0 


Term

Definition
W=mg
Mass and gravitation constant 


Term

Definition
ρ = mass /volume
F_{b}= Vρg = mg 


Term
Optics Manification Equation 

Definition
m = i/o
image over object
If M= negative = inverted
If M= Positive = erect image
if i is smaller than o = diminished 


Term

Definition
L^{1} = F1× r1 (CCW + ve)
L2 = F2× r2 (CW  ve)



Term

Definition
∑F=m x a
mass times acceleration 


Term

Definition
F= K_{G}(m1m2/ r^{2)}
r=distance between bodies
KG is the constant
m1m2=masses 


Term
Coulumbs law (use with law of gravitation) 

Definition
F = k(q1q2/r^{2)}
Note: if distance r2 is doubled, force is quartered 

