SOUNDS in solids, liquids and gases
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Transcript of SOUNDS in solids, liquids and gases
Solids, Liquids and Gases
SOUNDSIn
Sounds In Solids, Liquids And GasesLearning Intension
We are learning about How sound travels through materials.
How to use a model to explain how particles help transmit sound.
KeywordsTransmitParticlesModel SoundTravel
Copy and answer starterWhat does most of the sound we hear travel
through?
Class Discussion
How do you hear the
sound from a rock concert?
Sound in a vacuum
Write down all you know about sound travelling in a vacuum.
Can sound travel through a vacuum?
Sound in a vacuum
Why won’t sound travel in a vacuum?
Sounds and Particles
Question: Use particle theory to explain how sound travels through a solid.
(1 mark) for use of diagram(1 mark) for using the right terminology (1 mark) for getting the answer right
Your task: Suggest why sound does not travel through foam.
Homework1. Ultrasonic sound-what are they?
2. Give examples.3. Describe three uses of ultrasonic sound
Due date: Friday 17th January 2014