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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 |