Waves Review & Electromagnetic Waves Introduction

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Presentation transcript:

Waves Review & Electromagnetic Waves Introduction The Seven Types of Electromagnetic Waves The Colors of Visible Light

Electromagnetic Waves What Causes a Wave? Review For All Waves Electromagnetic Waves

What does a wave travel through? Review For All Waves Electromagnetic Waves The matter that waves travel through is called the _________. Some waves, called mechanical waves, __________________ to travel. Other waves don’t. __________ is an example of a mechanical wave. Sound travels by ________ the ____________ it is travelling through (its medium). Sound cannot travel through a ___________. Electromagnetic waves can travel through a ________. Electromagnetic waves do _____________________to travel. _____ is an example of an electromagnetic wave. Light can travel through a ___________ (_________).

Electromagnetic Waves What is the type of wave? Review For Sound Electromagnetic Waves Sound is a _____________ wave. This means the vibration that produces the sound travels ________________ ____________ as the wave moves. Electromagnetic (EM) waves are ______________ waves. This means the vibration that produces the EM wave travels ________________ to the direction the wave travels. Direction of Travel Vibration

Wavelength & Amplitude for an electromagnetic wave Amplitude, A Equilibrium Position The wavelength, λ, ________________________________________________________. The amplitude, A, ___________________________________________________________ _____________________.

Electromagnetic Waves Wave speed Review For Sound Electromagnetic Waves Sound travels at a _____________ in the same medium. This constant speed is called the _____________. In air (20oC @ sea level) the speed of sound is ___-m/s or ___-mph. Electromagnetic (EM) waves travel at a _______ _________ in the same medium. This constant speed is called the ______________, c. The speed of light in a vacuum is __________-m/s (___________-m/s) or ____________-mi/sec. ____________ travels faster than the speed of light!!!!