Sound Wave Definition
Sound waves are vibrations that transmit sound through matter. For example, speaking vibrates air particles, allowing us to hear.
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Wave Properties
Fun Facts
- Sound waves cause salt to vibrate on a speaker.
- In a vacuum jar with no air particles, sound from a phone cannot be heard.
- Dolphins use sound waves underwater for echolocation.
Why Do We Need To Know About Sound Wave
Learning about sound waves helps us understand how they affect many parts of our world. For example, in seismology, which is the study of earthquakes, knowing about sound waves can help predict when earthquakes might happen. This can save lives by helping make buildings stronger against earthquakes.
Also, learning about sound waves is useful in many jobs. It helps make live music sound better with speakers and allows sea animals and underwater equipment to find their way and talk to each other. This shows that knowing about sound waves can help in many different careers including making music, building things, and protecting the environment.
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