Chapter 8 WAVES— SOUND AND LIGHT

Chapter 8 waves SOUND AND LIGHT Vibrations and waves Wave Motion Transverse and Longitudinal waves The Nature of SOUND Resonance The Nature of LIGHT Reflection Transparent and Opaque Materials Color Refraction Diffraction Interference The Doppler Effect The Wave Particle DualityIn this unit, we will look at:I can define what a wave is, list several different types of waves and compare a wave with a Goal:Vibration:a wiggle in timeWave:a wiggle in space and time a disturbance that travels from one place to another transporting and waves DemonstrationDescription: Vibrationin terms of frequency (time) how often vibration motion occurs Wavein terms of its frequency, speed, amplitude, and wavelengthVibrations and WavesFrequency:number of to-and-fro vibrations in a given timeUnit: 1 vibration per second = 1 HertzPeriod:defined as the time it takes for a complete vibrationUnit: any unit of time, usually secondsVibrations and WavesRelationship between frequency and period:Frequency = 1/period Unit: Hertz (Hz)Period = 1/frequency Unit: second (s)The source of all waves is a and than 20 of the the frequency of a particular wave is 20 Hz, its period isVibrations and WavesCHECK YOUR :Note when = 20 Hz, T= 1/ = 1/(20 Hz) = 1 the frequency of a particula

A. radio waves. B. microwaves. C. visible light. D. gamma rays. The electromagnetic spectrum is a span of electromagnetic waves, ranging from lowest to highest frequencies. The smallest portion of the electromagnetic spectrum is that of The Nature of Light CHECK YOUR NEIGHBOR

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  Light, Waves, Sound, Light and sound

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