Communication

Communication - 

Non-ionizing:

Radio Waves

Micro Waves

Visible Waves

Ionizing:

Ultra Violet

X-Rays

Gamma Rays

• Communication is the exchange of information
• We use Non-Ionizing radiation for communication because it can penetrate through solids, liquids and gasses.

What devices uses what Radiation:

I only know 2 and they are:

T.V remotes and Mobile phones uses Infered radiation 

Radios use Radio Waves.

Quick Question:

What sort of radiation do sun beds use and why are they bad? (1mark)

Information:

• Information is sent form place to place using carrier waves
• Radio Waves, Microwaves, Infared or Visible Light can form teh carrier wave
• A wave carrying information is called a signal 

Analogue and Digital signals:

Can take only…