30.2: Introduction

Physci 101 Lab: Physical Science Laboratory Investigations · LibreTexts

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    From LibreTexts, under CC BY 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    All waves begin as a vibration. For the vibration to produce sound, there must be a material through which the vibration may travel. The vibrations of atoms and molecules in air create compressions and rarefactions in the air.

    clipboard_ec7c110d8026f96909673e5a09fe60f68.png
    Figure \(\PageIndex{1}\): Copy and Paste Caption here. (Copyright; author via source)

    Sound travels at an average speed of 343 m/s in air; this speed varies because it depends on the atmospheric pressure and temperature of the air. It takes time for the sound wave to travel. Light travels at a speed of 299,702,547 m/s in air. Light waves also take time to travel.

    \[\text {speed} = \dfrac {\text{distance}}{\text{time}} \nonumber \]

    This page titled 30.2: Introduction was last modified on Sun, 09 Aug 2026 22:42:36 GMT and is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Teresa Ciardi via source content that was edited to the style and standards of the LibreTexts platform.