What are some examples/ forms of energy?
 
 
 
 

Energy wasnít understood until the mid-1800ís.  Newton had no concept of energy

Yet, weíll see that the concept of energy is incredibly powerful.  As powerful as Newtonís laws are for mechanics, energy is at least as powerful for all of science.
 
 
 
 

Consider a car or steam train.  Why do they move?
 
 

Also, what happens when you saw a piece of metal or wood?