# Sound waves and ultrasound

> This section is sound as a longitudinal wave, how speed depends on the medium and temperature, and how pitch, loudness, and ultrasound are read from frequency and amplitude. The particle model…

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## Full notes

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## More in Longitudinal waves and sound

- [Longitudinal waves](https://www.hlayiso.com/grade-10/physical-sciences/notes/longitudinal-waves-and-sound/longitudinal-waves) — Next section
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## Frequently asked questions

### What will I learn in "Sound waves and ultrasound"?

This section covers Sound waves and ultrasound as part of Longitudinal waves and sound in Grade 10 Physical Sciences. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Sound waves and ultrasound", are written against the official CAPS curriculum and ATP for Grade 10 Physical Sciences.

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Continue with the next section in Longitudinal waves and sound, or test your understanding with the interactive quiz linked to this section.

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