ELECTROMAGNETIC WAVES

http://en.wikipedia.org/wiki/Ionizing_radiation

Electromagnetic waves have many different uses. They have different uses depending on their wavelength and frequency.

INCREASING ____________

Wave
Wave length
Effects on Living Tissue

INCREASING _____________

Electromagnetic waves all travel at the same s________ but they have different w_____________ and f____________ .

Radiation can have many uses fill in the table below.

Job	Type of radiation chosen	Negative Effects or Dangers
Thickness control
Sterilisation
Smoke alarm
Tracer
Checking welding

Job	Type of radiation chosen	Negative Effects or Dangers
Microwave
Radar
Optical Fibres
Mobile Phones
Electric Heater
Radio

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