All Flashcards
What is the effect of a nonconservative force like friction?
Dissipates energy, usually as heat.
What happens when net work is done on an object?
The object's kinetic energy changes.
What is the effect of a perpendicular force on an object's kinetic energy?
No change in kinetic energy; only changes direction.
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 difference between conservative and nonconservative forces?
Conservative forces: Path-independent, potential energy associated | Nonconservative forces: Path-dependent, no potential energy associated.
Compare positive and negative work.
Positive work: Energy added to the system | Negative work: Energy removed from the system.
Compare the effects of parallel and perpendicular force components on an object's energy.
Parallel Component: Changes the system's total energy | Perpendicular Component: Changes the direction of motion but not the energy.