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Waves of Sound
Term | Definition |
---|---|
sound | vibrations that you can usually hear with your ears |
transfer | to move from one place to another |
echo | a sound that bounces off a surface and travels back to someone's ears |
vibration | a quick movement back and forth |
air | the invisible gas that surrounds the Earth |
eardrum | a part of the ear that vibrates to help us hear sounds |
vacuum | an empty space without any air |
pitch | how high or how low a sound is when you hear it |
sound wave | the way sounds travel in an up-and-down pattern |
volume | how loud a sound is, measured by the height of a sound wave |
wavelength | the distance between two points of a wave |