Energy Flashcards
What is work?
Work is the transformation of energy from one form to another or the transfer of energy from one object to another
What is energy?
Energy is the ability to do work
Formula for work
W=F.s.cos(theta)
Where theta = angle between F and s
What is the Law of Conservation of Energy?
Energy cannot be created or destroyed, only transformed on one form to another or transferred from one body to another
How to find work done in a situation where 2 speeds are given
Work = change in energy = kinetic final - kinetic initial
What is k and x in the elastic potential energy equation?
K = spring constant (n/m) X = distance stretched or compressed (m)
What is Hooke’s law?
The greater the extension or compression, the greater the restorative force and therefore the greater the force required for the extension or compression
What is power?
The rate of change in energy
