Work & Energy Flashcards
1
Q
kinetic energy
A
KE = 1/2mv^2
2
Q
work
A
W = Fdcos(theta)
3
Q
work net
A
Wnet = Fnetdcos(theta)
4
Q
gravitational potential energy
A
U = mgh
5
Q
spring potential energy
A
U = 1/2kx^2
6
Q
charged objects electrical potential energy
A
q = uV
7
Q
change in electrical potential energy of a charge
A
DeltaU = qE * d
8
Q
change in voltage
A
DeltaV = E * d
9
Q
voltage away from a given point of charge
A
V = kQ/r
10
Q
electrical potential energy between two points of charge
A
U = kq1q2/r
11
Q
energy of a single photon
A
E(photon) = hf
12
Q
energy lost due to heat of friction
A
E(friction) = - F(kinetic friction) * d
13
Q
power
A
P = deltaE / t P = F * v
