work and energy

Work has many meanings in different subjects like in English we use it as a term for any day to day activity where as the term 'work' in physics means work is the energy transferred to or from an object via the application of force along a displacement.

The word energy in very often used in our daily life, but in science it is known as a capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms, but we for todays lesson we are only going to be learning potential and kinetic energy

In physics, the kinetic energy (KE) of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

Potential energy is energy that is stored – or conserved - in an object or substance. This stored energy is based on the position, arrangement or state of the object or substance. You can think of it as energy that has the 'potential' to do work.

Rishabh will do a white board session about it.

https://www.youtube.com/watch?v=g7u6pIfUVy4&feature=youtu.be

https://www.youtube.com/watch?v=PplaBASQ_3M&feature=youtu.be