Presentation on theme: "Gamma rays X-rays Ultraviolet Visible Infra-red Microwaves Radio Wavelength size comparison Can penetrate atmosphere? Absorb Reflect Emit Transmit Penetrate."— Presentation transcript:
Gamma rays X-rays Ultraviolet Visible Infra-red Microwaves Radio Wavelength size comparison Can penetrate atmosphere? Absorb Reflect Emit Transmit Penetrate Energy FrequencyWavelength Waves (Definitions of Frequency/Wavelength/Wave equation/amplitude) Ionisation/H ow this causes cancer Skins Protection Radiotherapy Ionosphere Heating and Absorption (Applies to all EM Waves but questions mainly on Microwaves and Infra-Red) Alternating Current/Voltage (Aerials etc) How EM waves interact with matter Annotate me... Optical Fibres Fluorescence X-Ray Photographs Sterilisation/Kill Harmful Bacteria Infra-Red Cameras Mobile Phones (Infra-Red, Bluetooth, Making calls etc) Satellite Communication International Radio Analogue and Digital signals (How waves used for communication can be sent) Other Info Used In Medicine Used mainly for communication Used to heat things up Local Radio and TV Prefixes nano (n) - 10 -9 – 0.000000001 micro (µ) - 10 -6 – 0.000001 milli (m) - 10 -3 – 0.001 kilo (k) - 10 3 – 1000 Mega (M) - 10 6 – 1000000 Giga (G) - 10 9 – 1000000000 Centi (c) – 10 -2 – 100 12 km = 12000m 15cm = 0.15m 700nm = 7.0 x 10 -7 m You dont really need to know the small ones like milli and micro but it helps.... Info that can be sent Damage to human tissue DetectorsSources
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