I form shapes and patterns, yet I leave no traces behind. What am I?

Category: Science · Difficulty: hard

Hint: Consider how sound and light can be represented.

Answer

A waveform

Explanation

Waveforms depict oscillations in various forms, while particles, vibrations, and signals can have different meanings in physics.

This is a hard science riddle — a tricky one that takes a little thought. The answer is A waveform.

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