Energy Flashcards
kinetic energy equaton
ke= 1/2mv^2
units : j or N*m
gravitational potential energy
pe=mgh
- energy of position
elastic potential energy
pe=.5kx^2
units of energy
joules
N*m
kgm^2/s^2
conservation of energy principle
no energy can be created or destroyed so inital energy must equal final energy
conservation of energy formula
KEi+ PEi = KEf + PEf
.5mv^2 i + mgh i = .5mv^2 f + mgh f
kinematics equation for final velocity
v2f = v2a + 2ad
final energy when nonconservative energy is at play
Ei - E nonconservative = E f
work energy therom
work performed ON or BY an object is equal to the change in its kinetic energy
W= KEf - KEi
+W= energy going into system
-W = energy leaving system
pressure equation
P= F/a or F=P*a
work pressure eqn
W= Fd
W=PAd
W= P*V
work, pressure and volume
W= P🔼v
Latm
pressure volume graphs
volume x axis
pressure y axis
area under curve: work
what does the area under a pressure vs volume curve represent
work
how do you find normal force of something on a ramp
mgcos(theta)
