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Science
Science(Sound)
Question | Answer |
---|---|
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 |