Useful for all age ranges, this dual range sensor accurately measures both sound pressure level in decibels (dBA) or frequency (mV). To make the measurements meaningful to learners, the sensor has been designed to approximate the normal human ear in the range and intensity that it 'hears' sounds.
Investigations:
Physics:
Sound frequency
Speed of sound
Sound insulation
Sound decay
Air resonance
Sound waves:
Monitoring the effect of altering frequency and amplitude, wave forms of musical instruments etc.
Biology:
Ear design
Animal activity studies
Environment:
Noise pollution indoors and outdoors