Sound worksheets.doc Word Bank         (You may use words more than once) air                        higher                        speed                        distances                 vibrating         lower                        speed                        reed                        radar                        lips                 timbre                        intensity                vocal chords                frequency                strings ¼ wavelength                ½ wavelength                open                        closed                        beats resonance                one end                length                        standing                mechanical increase                decrease                 Sound is produced by a ______________object, and must move through a medium because it is a _____________ wave.  The _______________ of a sound wave is the number of oscillations in one second.  The _________________ of a sound depends on air temperature. The velocity of sound is _________________ in gases than it is in solids or liquids. The human voice is produced when the _______________ vibrate.  In a trumpet, the ________________ vibrate.  In a clarinet, the _____________________ vibrates.  In a flute, a column of ______________ vibrates.  In a guitar the ___________________ vibrate. In a clarinet or trumpet, sound is only heard when the ______________ in the tube of the instrument vibrates at the same ___________________ as the reed or lips.  This effect is called _________________.  The pitch of the instrument is changed by changing the _______________ of the column of vibrating _____________.  A close pipe is a resonating tube with __________________ closed.  When sound waves reflected through the pipe reinforce one another a ___________________ wave is produced.  The shortest closed pipe that can produce a standing wave is __________________ long. An open pipe resonator has both ends ______________.  The shortest open pipe that can produce resonance is _________________ long. Sound quality is called_____________________. If two waves of slightly different frequencies reach the ear, the listener hears a pulsing variation in frequency called _________________ . The Doppler Effect causes sounds to seem to _________________ in frequency when the source is moving toward the listener, and ______________________ in frequency when the source is moving away from the listener.  The __________________ of the source of the sound does not change.  The Doppler Effect is used in the _________________ that measure the speed of automobiles.  It is also used in astronomy to measure the __________________ of galaxies and infer the _________________ to them.   The ___________________ of a sound wave is heard as pitch.  The ________________ of a sound wave is heard as loudness. PLEASE NEED KONA ASAP NO TROLLING OR BULLYING PL ASE BE POLITE AN KIND TO OTHERS NAHIHIRAPAN PO AKO THE BEST ANSWERS GETS THE BRAINLIEST TYSMM MWA! ​