SOUND

Sound waves

Sound waves travel at 343 m/s through the air and faster through liquids and solids. The waves transfer energy from the source of the sound, e.g. a drum, to its surroundings. Your ear detects sound waves when vibrating ...

Introduction

A sound is anything that can be heard. Music, the barking of a dog, the wailing of a siren, and the voice of a friend are all sounds

Speed of sound

The speed of sound varies depending on what medium it is traveling through. In air at a temperture of 70° F (21° C) sound travels at a speed of 1,129 feet (344 meters) per second. This means that it takes sound about five seconds to travel one mile. In warmer air sound travels faster. Sound travels even faster through water and solid mediums such as iron and stone.

Every sound has three basic properties: pitch, intensity, and quality. The pitch of a sound is how high or low it is. Faster vibrations cause sounds with a higher pitch. The intensity of sound is how loud or soft it is. Intensity depends on the strength of the vibrations. Stronger vibrations cause louder sounds. The quality, or timbre, of a sound is how harsh or pleasant a sound seems. Pitch, intensity, and timbre describe all sounds, from screeching car brakes to beautiful music.

Pitch intensity and quality

How Sound travels-

Sound vibrations travel in a wave pattern, and we call these vibrations sound waves. Sound waves move by vibrating objects and these objects vibrate other surrounding objects, carrying the sound along. ... Sound can move through the air, water, or solids, as long as there are particles to bounce off of.