All Flashcards
What are the key differences between Conservative and Nonconservative forces?
Conservative: Path-independent, potential energy exists, net work is zero over a closed path. | Nonconservative: Path-dependent, no potential energy, net work is not zero over a closed path.
Compare Positive, Negative, and Zero Work.
Positive: Energy added to the system. | Negative: Energy removed from the system. | Zero: No energy change.
What is the difference between work and energy?
Work: The process of energy transfer. | Energy: The state or capacity to do work.
What is Work in physics?
Energy transferred when a force acts over a distance.
Define Conservative Force.
A force where the work done is path-independent.
Define Nonconservative Force.
A force where the work done is path-dependent.
What is the Work-Energy Theorem?
The net work done on an object equals its change in kinetic energy.
Define Potential Energy.
Energy associated with conservative forces.
What is the effect of applying a force at an angle to the displacement?
Only the force component parallel to the displacement does work.