What is Sound?

Sounds can vary greatly: extremely quiet or deafeningly loud, high and shrill to low and booming. Why are they so different?

Physics - Waves - Learning Points.

Sound is a vibration passed to and fro along particles forming a wave.

It can only travel through matter and does not exist in a vacuum.

Pitch is determined by the frequency of the wave.

We hear sounds when vibrations travel into our ears.
A Twig Curriculum Film.
Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.