1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The difference between energy and forces

  1. Dec 18, 2011 #1
    What is the difference between energy and the four fundamental forces. They both seem to move bodies, so what's the difference?
  2. jcsd
  3. Dec 18, 2011 #2


    User Avatar

    Staff: Mentor

    Look at the math:

    work (energy expended) = force * distance
  4. Dec 18, 2011 #3


    User Avatar
    Gold Member

    Forces cause motion (namely, acceleration). Energies are quantities that objects have that are "conserved" when they interact with other objects. They are distinct quantities and concepts, though. An object can have forces acting on it, but have no change in energy. However, the converse is not true; an object can not have a change in energy without some force acting upon it.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook