Video answer: Speed of sound | mechanical waves and sound | physics | khan academy
Top best answers to the question «What would increase the speed of a sound wave»
The speed of a sound wave depends on the properties of the medium through which it moves and the only way to change the speed is to change the properties of the medium.
Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound in room temperature air is 346 meters per second.
Video answer: Wave speed equation - gcse physics