The amount of energy transferred by a force is called the work done by that force.
Work energy theorem in electrostatics.
Electricity magnetism electromagnetism.
Work transfers energy from one place to another or one form to another.
Not like in the groovy sense.
The formula to find the work done by a particular force on an object is w equals f d cosine theta.
Also here the work done is the work done by all forces acting on the body like gravity friction external force etc.
Electricity magnetism electrostatics.
For example consider the following figure according to work energy theorem work done by all the forces change in kinetic energy.
Where w is the work done by object measured using joules.
V f is the final velocity of an object measured using m s.
W g w n w f k f k i.
W δke ke ke.
W refers to the work done by the force f.
Where w g work done by gravity.
V i is the initial velocity of an object measured using m s.
For example when a ball is held above the ground and then dropped the work done on the ball as it falls is equal to the weight of the ball a force multiplied by the distance to the ground a displacement.
In more general systems than the particle system mentioned here work can change the potential energy of a mechanical device the heat energy in a thermal system or the electrical energy in an electrical.
The video introduces the work energy theorem provides the definition of the work energy theorem and provides the work energy theorem formula.
Physical sciences grade 12.
In physics it means something else.
W n work done by a normal.
It turns out that kinetic energy and the amount of work done in the system are strictly correlated and their relation can be described by the work energy theorem.
In this live gr 12 physical sciences show we take a look at the work energy theorem.
Actually energy is on.
It states that the work done by all external forces is converted into a change of kinetic energy.
In this lesson we revise different types of energy we define work as well as discuss the relationship between work and energy.
M is the mass of the object measured using kilograms.
In order to transfer energy to an object you ve got to exert a force on that object.
Electricity magnetism electric circuits.
Not that place you go to earn money.
