Light
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Medium
A physical substance that can transmit energy
Conduction
Transmission of energy through a SOLID medium Ex. Electricity through a copper wire, heat through a frying pan
Convection
Transmission of energy through a FLUID medium Ex. Roasting a chicken
Electromagnetic spectrum
Radio Micro Infrared Visible UV X-ray Gamma
Wave length
Distance between 2 crests Nanometers
Frequency
Cycles per second Hertz
As wave length increases…
Frequency and Energy DECREASES
As wave length decreases…
Frequency and Energy INCREASES
Radio wave examples
Tv signals Radar
Micro waves examples
Telecommunications Microwaves
Infrared waves examples
Remote controls Lasers Physical therapy
Visible light examples
Human vision Rainbow Theatre lighting
Ultra Violet waves
Black lights Risks skin cancer
X-rays waves examples
Cancer treatment
Gamma rays examples
Product of some nuclear decay