The potential energy represents the work done on the spring and the energy stored in it as a result of stretching or compressing it a distance x. The potential energy of the spring PEs does not depend on the path taken; it depends only on the stretch or squeeze x in the final configuration.
Is electric potential path dependent?
The electric potential is the electric potential energy of a test charge divided by its charge for every location in space. Because it’s derived from an energy, it’s a scalar field. … Electricity is a conservative force, so the work done by it doesn’t depend on the path taken.
Is potential energy path dependent or independent?
Gravitational potential energy is an example of a force that is path independent. Work can be a path dependent and a path independent variable. It depends on what type of force is being applied to do the work. Friction is a non-conservative force – work done against friction is path dependent.
Why potential energy is path independent?
the Green Path all have the same change in potential energy. The path does not matter. Path independence is a quality of conservative forces. The work done along this path can be simplified to a straight line.
Is electric potential positive or negative?
Note that the electrical potential energy is positive if the two charges are of the same type, either positive or negative, and negative if the two charges are of opposite types. This makes sense if you think of the change in the potential energy ΔU as you bring the two charges closer or move them farther apart.
Is kinetic energy a path function?
Kinetic energy: To find the change in kinetic energy, we directly subtract the final and initial values. It’s the energy possessed by the particle due to its motion. Hence is a state function, not a path function.
What is the 7 types of energy?
Energy exists in many different forms. Examples of these are: light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on.
Why is potential energy negative?
Gravitational potential energy is negative at the surface of Earth, because work is done by the gravitational field in bringing a mass from infinity i.e work has to be done on a body, if it is taken away from the gravitational field of the earth. Thus, potential energy is negative.