Newton's Laws
An object remains at rest or in uniform motion unless acted on by a net force; force equals mass times acceleration; every action has an equal and opposite reaction.
Applications: Vehicle dynamics, structural engineering, rocketry.
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Physics Theory
Work and Energy
Energy is the capacity to do work. In a closed system the total mechanical energy KE + PE is conserved when only conservative forces act.
Applications: Roller coasters, pendulums, hydroelectric dams.
Projectile Motion
A projectile follows a parabolic path: horizontal motion is uniform while vertical motion is uniformly accelerated by gravity.
Applications: Sports, ballistics, satellite re-entry analysis.
Waves
A wave is a disturbance carrying energy without transporting matter. v = fλ relates the three core wave properties.
Applications: Music, optics, telecommunications.
Electricity
Charge in motion creates current. Ohm's law links current, voltage and resistance — the building block of every circuit.
Applications: Consumer electronics, power grids, motors.