Next War

SENIOR SCEINCE TRIAL NOTES
  * Outline the basic pattern of information transfer process as:
  * Code common to both parties
  * Message
  * Transmission of coded message
  * Decoder
Communication is a transfer from one person to another. It involves the person who sends the information, which is equipped with a transmitter, which may be your voice box or your phone. The person who then receives the information is equipped with a receiver and a decoder. Depending on the communication, the receiver could be your ear if talking in person. For a cell phone, there must be a radio receiver to pick up phone signals and electrical circuits to decode signals into sound. The code is understood and shared by the sender and receiver. Code should be spoken or written language, technological communications involve digital codes and modulation. A message is transmitted from one party to another using a carrier medium. Technology involves electrical signals, radio, microwaves as forms of messages.
  * Identify a range of information systems used daily
There are many examples of information systems that are used in common technology. These include
  * Mobile phones
  * Televisions
  * Flags
  * Radios
  * Computers

  * Classify information systems as:
  * Verbal and non-verbal
  * Short distance and long distance
  * Electronic and non-electronic
Verbal
Includes information systems such as
  * Talking
  * Email
  * Phone call
Non-verbal
  * Body language
  * Radio music
  * Traffic light
Short distance
  * Talking
  * Body language
  * Beach flags
Long distance
  * Email
  * Phone call
  * Radio
Electronic
  * Email
  * Phone call
  * Traffic light
Non-electronic
  * Talking
  * Beach flags
  * Advert billboard

  * Recall phenomena and events where different forms of energy are used

  * When you switch on a light you use electrical energy to produce light energy
  * Talking converts...