Refraction is the change in direction of a wave due to a change in its transmission medium. As a wave changes medium, the velocity and wavelength change while the frequency does not change. Waves Classwork #5 Sound as a Wave – 8th Grade PSI Science Name______________________________ What is the source of any sound wave? Vibrating objects. Compare the sound waves produced by longer/shorter vibrating objects. Longer vibrating objects longer sound waves. – Shorter vibrating objects shorter sound waves. – Relate the terms frequency and pitch in terms of sound waves. High frequency sound waves are heard as high pitched sounds. Low frequency sound waves are heard as low pitched sounds. Relate the terms Amplitude and Loudness in terms of sound waves. High amplitudes make sound waves louder. Low amplitudes make sound waves softer. What is the hearing frequency range for most human beings? 20 Hz 20 kHz. –
Refraction is the change in direction of a wave due to a change in its transmission medium. As a wave changes medium, the velocity and wavelength change while the frequency does not change. Waves Classwork #5 – Sound as a Wave 8th Grade PSI Science Name______________________________ What is the source of any sound wave? Vibrating objects. Compare the sound waves produced by longer/shorter vibrating objects. Longer vibrating objects – longer sound waves. Shorter vibrating objects – shorter sound waves. Relate the terms frequency and pitch in terms of sound waves. High frequency sound waves are heard as high pitched sounds. Low frequency sound waves are heard as low pitched sounds. Relate the terms Amplitude and Loudness in terms of sound waves. High amplitudes make sound waves louder. Low amplitudes make sound waves softer. What is the hearing frequency range for most human beings? 20 Hz – 20 kHz.