Language does not simply mirror reality, it helps create our sense of reality by giving meaning to events. Rather than thinking of ideas in coming up with words to express them, we usually think in words. Inaccurate use of language can harm speakersâ credibility by making them sound less intelligent or ill informed.
Ultrasound is high frequency sound wave with frequencies of 20 kHz or higher. (Fig. 1) Ultrasound has many practical applications. It is often used in cameras to measure distance and used in ships to measure sea depth.However, more interesting applications of ultrasound are in the field of medicine. Using an array of piezoelectric transducers, ultrasound can be used to image the internal organs.Fig. 1) Ultrasound has many practical applications. It is often used in cameras to measure distance and used in ships to measure sea depth. However, more interesting applications of ultrasound are in the field of medicine.
Ultrasound can be used to clean objects. The fast, energetic ultrasound vibrations are absorbed by dirt which is then shaken free. This method of cleaning is used in industry for fragile equipment or to clean in corners which are otherwise difficult to get into.ltrasound travels at the same speedSpeed is a measure of how fast something is moving. It is calculated by dividing the distance travelled by the time taken.speed as sound, 330 m/s in air. Use this equation to answer the questions below. Boats and submarines use echo sounding, or sonar.