Topic :Understanding The Relation: ENERGY(P.E. and K.E.) and WORK

Topic :Understanding The Relation: ENERGY and WORK (which is affected by FRICTION,GRAVITATION.)
Part 1: Introduction: Energy, Law of Conservation Of Energy
ENERGY!!!This is a video made for an Educational Media class on kinetic and potential energy.
The Law of Conservation of EnergyIn physics, the law of conservation of energy states that the total amount of energy in any isolated system remains constant but cannot be recreated, although it may change forms, e.g. friction turns kinetic energy into thermal energy. In thermodynamics, the first law of thermodynamics is a statement of the conservation of energy for thermodynamic systems, and is the more encompassing version of the conservation of energy. In short, the law of conservation of energy states that energy can not be created or destroyed, it can only be changed from one form to another or transferred from one body to another, but the total amount of energy remains constant (the same).
POTENTIAL ENERGY=KINETIC ENERGY [ But factors of friction or gravitation must be considered]
Moment of Inertia & Converting Potential Energy to Kinetic E

Part 2(A) What’s Potential Energy
Potential Energy is energy associated with height, kept in battery, spring in restrained state.
Physic: Potential Energy:
PE=mgh. The energy stored by moving a mass to a height above the surface of the earth, which turns into Kinetic Energy when dropped due to the force of Gravity.That's all well and good, but can you BREAK STUFF with it? SURE! At Slightly-Mad Science, we love breaking stuff!
Potential Energy

Energy - Gravitational Potential Energy

Part 2(B) What’s Kinetic Energy
Kinetic Energy is energy associated with movement
Conserve your frustration-energy and let us help you understand. Learn about kinetic energy, joules, the conservation of energy, and the work-kinetic energy principle
. Potential and Kinetic Energy
Mechanical Energy - Kinetic and PotentialA brief basic explanation about mechanical energy, potential energy and kinetic energy. the derivation of the formula and drill work. Stay tuned!
Part 3 Illustration of Potential Energy=Kinetic Energy
In theory if there is no friction or gravity or any external force (energy) acting on an object; the object either remain at inertial(stationary) or moving uniformly NON-STOP[Newton’s first and second law]. This is NEWTON’s LAW ON MOTION, but then it is still related to Thermodynamic THE LAW OF HEAT which establish this topic of POTENTIAL ENERGY=KINETIC ENERGY at the beginning of this study All in all , energy cannot be lost or created,it can only be transformed (as into light,heat,movement,sound…). THIS IS THE ZIST OF LAW OF CONSERVATION OF ENERGY. If energy cann’t be created, then how it comes into being? To me there’s a creator of universe!
Introduction to work and energy
Introduction to frictionCorrection of definition of "normal force" and an introduction to the coefficient of friction.
Friction on an inclined plane

Work/Energy problem with Friction
Kinetic and Potential Energy
Take a clock as an example:

(1)Battery=potential energy in the chemical-àHandle moves=kinetic energy,the WORK--- .[ 2 stages]
(2)If the clock/watch belonging to non-battery operated: The winding up(kinetic energy)THE WORK=Spring tighten up(potential energy)=the handle moves at each second(kinetic energy THE WORK )----[3 stages]
(3)Just a joke: When someone gets angry(potential energy) until cann’t bear it then blowing on somebody(kinetic energy).