Lessons · Physics
Sound
Most lessons require minimal resources other than the smartphone, and are relevant to introductory physics in high school and college.
Sound
12 lessons Tone Generator Surface Waves and Couder Spheres What do physical waves look like? Oscilloscope Waveforms Produced by Sound What kind of waveforms are representative of high/low pitch and high/low volume? Tone Detector Natural Resonance of Sound What is the relationship between resonant frequency of a bottle and the length of the resonating air column? (or the properties of a resonating rod?) Tone Generator Forced Resonance of Sound How many harmonics can be created in a straw? Sound Meter Noise Insulators What types of materials block out sound waves? Sound Meter · Tone Generator Interference What is the relationship between position between two sound sources and intensity? Sound Meter Ambient Noise How loud is my environment? Tone Generator Beats What is the relationship between two frequencies played at once and the observed beat? Tone Generator · Oscilloscope What is the speed of sound in air? Speed of Sound in Air Tone Detector · Spectrum Analyzer Natural Scale What is the relationship frequency and note number in the natural scale? Spectrum Analyzer Harmonics What is the relationship frequency and harmonic number? Sound Meter · Tone Generator Sound Intensity What is the relationship between the sound intensity and distance from a point source of sound?