Work Energy Theorem In Electrostatics
Where w g work done by gravity.
Work energy theorem in electrostatics. The work energy theorem can be derived from newton s second law. Work transfers energy from one place to another or one form to another. W refers to the work done by the force f. It states that the work done by all external forces is converted into a change of kinetic energy.
Electricity magnetism electric circuits. In this lesson we revise different types of energy we define work as well as discuss the relationship between work and energy. In order to transfer energy to an object you ve got to exert a force on that object. Where w is the work done by object measured using joules.
V i is the initial velocity of an object measured using m s. The video introduces the work energy theorem provides the definition of the work energy theorem and provides the work energy theorem formula. Electricity magnetism electrostatics. W n work done by a normal.
W δke ke ke. 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. Not that place you go to earn money. Also here the work done is the work done by all forces acting on the body like gravity friction external force etc.
V f is the final velocity of an object measured using m s. W g w n w f k f k i. The amount of energy transferred by a force is called the work done by that force. In this live gr 12 physical sciences show we take a look at the work energy theorem.
Not like in the groovy sense. 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. Thus the work energy theorem states that. Work is the product of force and displacement in physics a force is said to do work if when acting there is a movement of the point of application in the direction of the force.
M is the mass of the object measured using kilograms. In physics it means something else. Electricity magnetism electromagnetism. Physical sciences grade 12.
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.