Physics for Engineers: Waves, Optics, Electromagnetism & Mechanics Guide

Physics for engineers covers the principles behind energy, waves, light, electric and magnetic fields, and motion. These guides explain each concept with the equations and examples engineering students need.

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Core ideas to learn first.

Waves & optics

Sound, electromagnetic waves, ray optics and interference.

Electric fields & capacitance

Gauss’s law, potential, dipoles and capacitors.

Magnetism & induction

Magnetic fields, magnets and Maxwell’s equations.

Mechanics & rotation

Moment of inertia and the dynamics of mechanical systems.

Frequently asked questions

What is the difference between energy and power?

Energy is the ability to do work, while power is the rate at which work is done or energy is transferred.

What is a mechanical wave?

A mechanical wave is a disturbance that travels through a medium such as a solid, liquid or gas, transferring energy without transporting matter.

What is ray optics?

Ray optics, also called geometrical optics, describes light as rays, imaginary lines that show the path along which light travels.

What is moment of inertia?

Moment of inertia measures how much an object resists changes to its rotational motion. It plays a central role in rotational dynamics.

Prefer a simple list? See every article in the Physics category, or browse all categories.