Frequency: This refers to the number of vibrations per second and is measured in hertz (Hz). Higher frequencies result in higher-pitched sounds, while lower frequencies produce lower-pitched sounds.
Soundenergy is produced when an object vibrates, creating disturbances in the surrounding medium. These disturbances travel as waves, carrying the energy of the sound. When the waves reach our ears, they cause our eardrums to vibrate, which our brain interprets as sound.
Concepts of Physical Science: A student should understand and be able to apply the concepts, models, theories, universal principles, and facts that explain the physical world. A student who meets the content standard should:
Develop an understanding of the interactions between matter and energy, including physical, chemical, and nuclear changes, and the effects of these interactions on physical systems.