Formulas Flashcards
(19 cards)
1
Q
Period of harmonic oscillator
A
T=2(pi)sqrt(m/k)
2
Q
Coulomb’s law
A
F=(kq1q2)/r^2
3
Q
Centripetal acceleration
A
A=v^2/r or A=rw^2
4
Q
Ohm’s law
A
V=iR
5
Q
Electric potential
A
PE=QV
6
Q
Electric field magnitude
A
E=(kq)/r^2
7
Q
Mirror focal length (thin lens)
A
1/f=1/do+1/di
8
Q
Power and resistance
A
P1R1=P2R2
9
Q
Period of a pendulum
A
T=2(pi)sqrt(L/g)
10
Q
Series capacitance
A
1/Ct=1/C1+1/C2+…+1/Cn
11
Q
Parallel capacitance
A
Ct=C1+C2+…+Cn
12
Q
Ideal gas law
A
P=(NkT)/V
(P1V1)/T1=(P2V2)/T2
13
Q
Bernoulli’s principle
A
P1+(1/2)pv^2=P2+(1/2)pv^2
14
Q
Lorentz force
A
Fb=qv*B
15
Q
Centripetal force
A
F=m(v^2/r)
F=mrw^2
16
Q
Resistivity of a cylinder
A
R=(pL)/A
17
Q
Magnetic flux
A
=BAcos(theta)
18
Q
Faraday’s law of induction
A
Emf=-N(change in flux/change in time)
19
Q
Lenz’s law
A
The emf creates a current and a magnetic field that oppose the change in flux
