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What is the effect of applying a force at an angle to the displacement?
Only the force component parallel to the displacement does work.
What is work?
The transfer of energy when a force acts on an object over a distance.
What is a scalar quantity?
A quantity that has magnitude only, not direction.
What is a conservative force?
A force where the work done is path-independent; only the start and end points matter.
What is potential energy?
Energy associated with conservative forces.
What is a nonconservative force?
A force where the work done depends on the path taken.
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.