1.4 Energy concepts Flashcards
1
Q
Define the total internal energy of an object
A
The total energy possessed by the particles of the object - kinetic energy and potential energy
2
Q
What is the equation for work done?
A
W = Fx (work done = force x distance moved in the direction of the force)
3
Q
What is the link between energy and work done?
A
Energy transferred is defined as equal to the work done by the force
4
Q
What is the work energy principle?
A
W = 1/2mv^2 - 1/2mu^2
5
Q
What is the equation for gravitational potential energy?
A
GPE = mgh
6
Q
What is the equation for kinetic energy?
A
KE = 1/2mv^2
7
Q
What is the equation for elastic potential energy?
A
EE = 1/2kx^2
8
Q
What is the equation linking power, energy, and time?
A
P = E/t
