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What is sound? What is produced when object vibrate
Give an example of sound made by vibrations When you listen to music the diaphram of the speaker vibrates
What is the reflection of sound? When sound reflects off certain objects. An example is an echo
What is the speed of sound in air? 340 meters per second (340 ms-1)
Give an example of how we know light travels faster than sound? Thunder and lightning, we see the lightning before we hear the thunder
Created by: Chimozukee