Hearing and Sound
Watch the video above.
Discussion Questions
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Info to Remember :
Sound starts as a vibration. Something has to move for sound to exist. For instance, you can ring a bell, clap your hands, or pluck guitar strings to produce vibrations that cause sound waves. Vibrations travel in sound waves from one place to another through the air. If the vibrations reach your ear, your ear will send a signal to your brain and you will hear the sound.Sounds make vibrations and vibrations move in all directions. The bigger the vibration, the louder the sound. The smaller the vibration, the quieter the sound. Sound travels in waves, that have energy. |
I can recognize that pitch is the result of differences in the rate of vibration and predict how a change in the rate of vibration will affect sound.
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I can recognize that there are ways of measuring the loudness of sounds and that loud sounds pose a danger to the ear.
I can recognize that certain sounds have characteristics that cause them to be interpreted as pleasant or unpleasant, and identify these characteristics.
I can describe changes in hearing that result from continued exposure to loud noise and from the natural process of aging.
I can recognize that certain sounds have characteristics that cause them to be interpreted as pleasant or unpleasant, and identify these characteristics.
I can describe changes in hearing that result from continued exposure to loud noise and from the natural process of aging.
I can describe how the human ear senses vibrations
I can compare the range of hearing in humans to that in other animals; e.g., dogs and bats.
I can describe changes in hearing that result from continued exposure to loud noise and from the natural process of aging
I can compare the range of hearing in humans to that in other animals; e.g., dogs and bats.
I can describe changes in hearing that result from continued exposure to loud noise and from the natural process of aging
I can identify examples that show that sound can travel through a variety of materials, including solids, liquids and air, and that sound travels in all directions.