PhysicsGrade 12· Indiana Academic Standards (IDOE)
Aligned to:Indiana Academic Standards / NGSS-aligned
Electromagnetic Waves
From radio waves to gamma rays — one spectrum, many uses.
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Overview
Light is just one small slice of a much bigger family: electromagnetic waves. They all travel at the speed of light.
Key Ideas
From longest to shortest wavelength: radio, microwave, infrared, visible, ultraviolet, X-ray, gamma. All are oscillating electric and magnetic fields.
Quick Check
Try explaining the main idea to someone else in your own words — the best test of understanding.
