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CHAPTER 1 - WAVES/SOUND - Coggle Diagram
CHAPTER 1 - WAVES/SOUND
What is wave?
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Falling pebbles transfer their kinetic energy to the particles of water in a pond, forming waves
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Mechanical Waves
are waves which require a medium. A medium is a form of matter through which the wave travels such as (water, air, glass). Waves such as light, x-rays and other form of radiation do not require a medium
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Sound Waves
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Sound travels through air, but sound also travels through other materials
Ex: Whale communicate through long distance by producing sounds underwater
Seismic Waves
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- Transverse Wave: The crest is the highest point on a transverse wave. The trough is the lowest point on a transverse wave
- Compressional (longitudinal) wave: on a compressional wave, the area squeezed together is called compression
Wave frequency
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When wavelength decrease, frequency increase & vice versa
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Refraction
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Waves travel at certain speed, moves into another medium with higher or lower speed resulting change of direction
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Sound
Sound is a compressional wave which travels through the air through a series of compressions & rarefactions
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We hear sound which usually travels through air, but sound travel through other media as well (water, aluminium, brick)
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Sound intensity
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the greater the intensity of sound, the farther the sound will travel & the louder the sound will appear
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