Physics

Physics

1. Links

   • Sound
     • http://www.bbc.co.uk/education/guides/z8d2mp3/revision/3
     • http://www.bbc.co.uk/bitesize/ks2/science/materials/solids_liquids_gases/read/1/
   • Light
     • http://www.bbc.co.uk/education/guides/zq7thyc/revision/1
     • http://www.cyberphysics.co.uk/wordmissing/Light.htm
     • http://www.bbc.co.uk/education/clips/z79pvcw

2. Sound

   • Facts
     • Longitudal
     • Can't travel through a vacuum
     • Travels fastest through a solid
     • Humans can hear between 20 and 20,000hz
     • 20,000hz+ is ultra sound
   • Terms and Definitions
     • Frequency
       • Number of waves per second
     • Amplitude
       • Maximum height of a wave
     • Wavelength
       • Distance between the same two points of two waves
     • Ultrasound
       • 20,000 hertz and higher

3. Light

   • Terms and Definitions
     • Reflection
       • When light bounces off a surface
     • Refraction
       • When light slows down
     • Spectrum
       • Colours that make up white. Green, red, yellow
   • Facts
     • 300,000,000 m/s
     • Can travel through a vacuum
     • Travels fastest through a gas

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