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# Sound, Light and Wave Behavior

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## Michael Stange

on 28 April 2014

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#### Transcript of Sound, Light and Wave Behavior

•All waves exhibit certain characteristics: wavelength, frequency, and amplitude. As wavelength increases, frequency decreases.
•A longitudinal wave consists of a repeating pattern of compressions and rarefactions. Wavelength is measured as the distance from one compression to the next compression or the distance from one rarefaction to the next rarefaction.
What is the speed of sound?
is cool
mechanical energy in waves
Sound is produced by vibrations and is a type of mechanical energy.
Sound travels in compression waves and at a speed much slower than light.
It needs a medium (solid, liquid, or gas) in which to travel. In a compression wave, matter vibrates in the same direction in which the wave travels.
waves and wave behavior...
What is a wave?
A wave is a traveling disturbance in a medium.

there are two main types of waves:
Longitudinal and transverse
What are the differences between the two types of waves?
In a longitudinal wave, the disturbance travels in the same direction as the
wave, while in a transverse wave, the disturbance moves perpendicular to
the direction of the traveling wave.
there are four main parts of a wave:
what are some applications of sound waves?
Echolocation (sonar)
what is light exactly?
Light travels in straight lines until it strikes an object where it can be reflected, absorbed, transmitted, or bent. As light waves travel through different media, they undergo a change in speed that may result in refraction.

Describe how reflection and refraction occur:
Light is a form of radiant energy that moves in transverse waves.

The wave moves at right angles to the direction the energy travels.

Draw a VENN Diagram to compare and contrast the particle and wave theories of light:
The electromagnetic spectrum...
Electromagnetic waves are arranged on the electromagnetic spectrum by wavelength. All types of electromagnetic radiation travel at the speed of light, but differ in wavelength.
Radio waves are the lowest energy waves and have the longest wavelength and the lowest frequency.
Gamma rays are the highest energy waves and have the shortest wavelength and the highest frequency.
Visible light lies in between and makes up only a small portion of the electromagnetic spectrum.
Light and electromagnetic waves
Sound Waves
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