Words
- Cilia- small, nerve-like hairs in your cochlea which help the cochlea convert the sounds into electric signals
- Reflection- A ray of light bounces of a surface to another
- Refraction- When a ray of lights changes speed and direction when enters a different density
- Lens- An optical device that transmits and reflects light
- Laser- A bright, monochromatic ray of light
- Binary Code- 'A coding system used to represent letter, digit or character using 1s and 0s' (in this case used in a CD)
- Bit- The zeros and ones that make up a binary code
- Land- Flat surface (CD surface
- Pit- Peaked surface (CD surface)
- Amplitude- The volume of a sound
- Sound Wave- Path of vibrating sound
- Oscillations- Whenparticles'bump' into each other (vibrations)
- Frequency- The Pitch of sound, the number of wavelengths per second
- Sampling- The analogue signal is converted into the binary codes
Still don't get it?
Here are some useful websites-
http://www.explainthatstuff.com/cdplayers.html
http://electronics.howstuffworks.com/cd.htm
http://www.physics.org/article-questions.asp?id=54
http://electronics.howstuffworks.com/cd.htm
http://www.physics.org/article-questions.asp?id=54
THANK YOU
Although this seems like a very long process it happens within a short time!