Bell Work 3/25 What wave property is determined by the distance between one compression and the next compression of a longitudinal wave? Awavelength Bamplitude.

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Presentation transcript:

Bell Work 3/25 What wave property is determined by the distance between one compression and the next compression of a longitudinal wave? Awavelength Bamplitude Cfrequency Dwave speed

Wavelength= distance between any two corresponding locations. Usually measured in one of three ways: 1. crest to next crest 2. trough to next trough 3. from the start of a wave cycle to the next starting point Label the wavelength on both types of waves.

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Frequency: The number of waves in given amount of time higher frequency = more energy Units: Hz = Hertz

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Properties of Waves Wave speed is the speed at which a wave travels. Wave speed can be calculated by using the following formula: v = λ x f or v = λ f v = wave speed λ = wavelength f = frequency Determine the wave speed of a wave that has a wavelength of 5 m and a frequency of 4 Hz. Express the units as m/s.

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Wave Interactions The frequencies at which standing waves are made are called resonant frequencies. When an object vibrating at or near the resonant frequency of a second object causes the second object to vibrate, resonance occurs. A resonating object absorbs energy from the vibrating object and vibrates, too. Tacoma Narrows Bridge AKA “Galloping Gertie” is a phenomenon, or an extraordinary event, that caused a lot of destruction because of resonance. Watch this Video!