Physics of Waves What is sound? 1. Physics of Sound I. Basics of sound Terms and word wall II. What is a wave? III. Ultrasound 2.

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Presentation transcript:

Physics of Waves What is sound? 1

Physics of Sound I. Basics of sound Terms and word wall II. What is a wave? III. Ultrasound 2

Sound word wall Wave Crest Trough Amplitude Frequency Hertz Pitch Doppler effect Noise 3

What is a wave? 4

What is a wave? 1.The wavelength of the wave in the diagram above is given by letter ______. 2. The amplitude of the wave in the diagram above is given by letter _____. 5

What is a wave? 3. Indicate the interval that represents one full wavelength. 6

Waves What is sound? – Pitch – Frequency – Noise What is noise? – How do noise differ from sound? 7

Ultrasound 8

9

10 Ultrasound imaging: imaging the heart heart valves atrium ventricle

Ultrasound 11 Ultrasound imaging: carotid artery

Ultrasound 12 Ultrasound imaging: carotid artery

Ultrasound 13 Ultrasound imaging: carotid artery

Speed = Wavelength Frequency Using the symbols v,, and f, the equation can be rewritten as v = f 14