physics formulae

Q (charge)=

It

I=

Q/t

E=

W/Q

V= (og)

IR

V= (energy)

W/Q

R=

V/I

R= (series)

R1+R2+....+Rx

1/R= (parallel)

1/R1+1/R2+...+1/Rx

R= (resistivity)

pL/A

p=

RA/l

V= (series)

V1+V2+...+Vx

V= (parallel)

V=V1=V2=Vx

I= (parallel)

I=I1+12+...+Ix

I= (series)

I=I1=I2=Ix

P=

IV

E= (power)

Pt=IVt=IxIRt=(VxV)t/R

W=

mg

PE=

mgh

E=

mcT

Celsius=

Kelvin- 273

Fahrenheit=

1.8 celsius + 32

C=

E/ change in Temp

c=

C/m

E=

mL

speed of wave=

frequency x wavelength

Time Period of wave=

1/f

amplitude=

(highest point-lowest point)/2

speed=

d/t

echo speed=

2d/t