Science Homework Help: Sound - Twinkl.

Sound can also mean a body of water, like a bay or channel. We can define a sound wave as a disturbance which travels through some medium. Sound is the term to describe what is heard when sound waves pass through a medium to the ear.All sounds are made by vibrations of molecules through which the sound travels. For instance, when a drum or a cymbal is struck, the object vibrates.

As sound waves travel through the material, each molecule hits another and returns to its original position. The result is that regions of the medium become alternately more dense, when they are called condensations, and less dense, when they are called rarefactions. Sound waves are often depicted in graphs like the one below, where the x-axis.

What is sound? Sound is created when something vibrates and sends waves of energy (vibration) into our ears. The vibrations travel through the air or another medium (solid, liquid or gas) to the ear. The stronger the vibrations, the louder the sound. Sounds are fainter the further you get from the sound source.

Facts about Science. Sound is caused by vibrations. Vibrating objects make sound. This sound is passed to our ears and this is how we hear. Sounds get louder (increase in volume) when they vibrate harder. Pitch is how high or low a note is. The shorter the vibrating object, the higher the pitch. Click here to answer questions about Sounds.

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Online Waves and sound Assignment Help Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.

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Sound waves show other properties that resemble those of light. One is the phenomenon called interference. If an identical tone is produced by two sources, the sound waves may get “out of phase”; that is, the compression waves from one source may arrive at the listener’s ear along with the rarefaction waves from the other source. If so.

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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.