Dekan Posted May 30, 2011 Share Posted May 30, 2011 Kinetic Energy seems easy to understand. For instance, if you throw a football, or any object, away from you. Your act of throwing, requires movement on your part. This movement is transferred to the object, which then itself starts moving. As it moves, the distance between you and the object continually increases. This continually changing distance, reveals that the object has acquired extra (kinetic) energy. That's clear. But I can't understand Potential Energy. Suppose you don't throw the object, but just lift it up, and put it (say), onto the roof of your house. Up there, it's supposed to have acquired extra (potential) energy. But once placed there, it's not in motion any more. Nothing is changing. So has it really got extra energy, and how is that revealed? Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now