The gravitational potential energy between two mutually attracting bodies is derived. After, several essential applications of universal gravitation are presented.

Lecture 027: Gravitational Potential Energy

Calculus based physics for undergraduate and high school physics students.

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Lecture 103: Derivatives Part II

Capacitance is defined in the context of an arrangement of parallel plates.  The electric field energy per unit volume is also derived.

Lecture 044: Capacitance

The notion of lines of equipotential is introduced and explored.

Lecture 043: Equipotentials

The electric potential between two parallel conducting plates of known surface charge density is discussed in detail.  This example is of particular interest because it is used to illuminate the relationship between force, field, voltage and energy.

Lecture 042: Parallel Conducting Plates

The Electrostatic Potential energy is derived from the work-energy theorem which leads, in turn to our definition of electric potential, the energy per unit charge.

Lecture 027: Gravitational Potential Energy

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