H H Work and Energy

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In this chapter, we will introduce a new concept--energy--that is one of the most important unifying concepts in all physical science. It's importance stems from the principle of conservation of energy.
Chapters 1-6 Summary


The Quantum Foam

 How can we harness the vast store of energy in the wide-open space between the Stars and Galaxies?
Mass? Energy?

Brian Greene, The Fabric of the Universe

 A Nobel Prize Winning Physicist tells us about mass.

Elastic
Potential Energy

to
Kinetic Energy

to
Gravitational
Potential Energy

to
Kinetic Energy

and in between to

Heat

Work (Joules) = Force (N) x Distance (m)
Work = The component of the Force in the direction of the displacement
 

Sliding down a ramp

  
What if there are more forces acting on the sled?

Since the first humans climbed out of the trees, humans have utiliized the transfer of energy concept as a means to make sense of their world or other worlds.

Mars Explorer
 
Conservation of Energy  I, II

Mechanical Universe
click below
Using
Energy Methods instead of the
motion equations