Energy Flashcards
What is the equation for kinetic energy?
= 1/2 mv (2)
What are the symbols for the kinetic energy equation?
Ek= Kinetic energy
m=mass
v=speed
What is the equation for elastic potential energy?
=1/2 ke (2)
what are the symbols for the elastic potential energy equation?
Ee=elastic potential energy
K= spring constant
e=extension
What is the equation for gravitational energy?
Ep= mgh
What are the symbols for the gravitational energy equation?
Ep=gravitational potential energy
m=mass
g=gravitational field strength
h=height
What is the equation for change in thermal energy?
(trigangle) E = mc(triangle)0
what are the symbols for change in the thermal energy equation?
(triangle)E = change in thermal energy
m=mass
c=specific heat capacity
(triangle)0= temperature change
What is the equation of power ?
P= E/t
What are the symbols for the Power equation?
P=power
E=energy transfered
t=time
What is the equation for effiency?
Useful energy out/ total energy
What is the equation for efficiency?
Useful power out/ total power in
