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Science
Sound Frequency
Question | Answer |
---|---|
Shorter wavelength= | Higher frequency/pitch |
Longer wavelength= | Lower frequency/pitch |
Doppler Effect | Apparent change in frequency due to movement of sound source |
Moving Closer= | Seem to have higher frequency |
Moving away= | Seem to have lower frequency |
Normal human hearing range | 20-20,000 Hz |
What indicates intensity of compressional wave? | How tightly molecules are packed together in rarefactions and compressions |
What is frequency? | Number of rarefactions/compressions that pass a fixed point each second |
Hz | Frequency |
dB | Intensity |