The previous page is sending you to http://cfialabioassignment.wikispaces.com/Explain%20that%20sound%20is%20produced%20by%20vibrating%20objects%20and%20that%20the%20frequency%20of%20the%20sound%20is%20the%20same%20as%20the%20frequency%20of%20the%20vibration%20of%20the%20source%20of%20the%20sound.

 If you do not want to visit that page, you can return to the previous page.