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Sagot :
1. WAVELENGTH
2. DECIBEL
3. PITCH
4. LONGITUDINAL
5. CREST
6. NOISE
7. AMPLITUDE
8. SOLID
9. TROUGH
10. REFLECTION
1. Wavelength
- wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
2. Decibel
- The decibel is a relative unit of measurement equal to one-tenth of a bel. It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale.
3. Pitch
- The sensation of a frequency is commonly referred to as the pitch of a sound. A high pitch sound corresponds to a high-frequency sound wave and a low pitch sound corresponds to a low-frequency sound wave.
4. Longtidunal
- A longitudinal study is a research design that involves repeated observations of the same variables over short or long periods.
5. Crest
- A crest point on a wave is the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum.
6. Noise
- Noise is unwanted sound considered unpleasant, loud, or disruptive to hearing.
7. Amplitude
- The amplitude of a periodic variable is a measure of its change in a single period. The amplitude of a non-periodic signal is its magnitude compared with a reference value.
8. Solid
- Solid is one of the four fundamental states of matter. The molecules in a solid are closely packed together and contain the least amount of kinetic energy.
9. Trough
- Trough is the lowest point below the rest position.
10. Reflection
- Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns to the medium from which it originated.
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