Waves 2

Waves 2

1. waves = transmit information

   • we use them to transmit information by varying the amount of energy carried by the wave.

2. Electromagnetic waves

   • Microwavs can transfer data to mobile phones.
   • An electric fire transfers energy to our bodies by infrared waves warming us up
   • Some energy from the Sun is transferred by ultraviolet rays
   • Not all energy from an X-ray machine is transferred.
   • Some energy is absorbed by the body when an X-ray image is produced
   • energy from radioactive sources can be transferred by gamma rays
   • Energy from radioactive sources can be transferred by gamma rays