atch?v=cfXzwh3KadE&list=P L2D6507E06F9A7FB2 atch?v=cfXzwh3KadE&list=P L2D6507E06F9A7FB2 click to watch

ngzone/clips/the- electromagnetic- spectrum/10676.html ngzone/clips/the- electromagnetic- spectrum/10676.html How can you remember the order of the electromagnetic waves ? radio microwave infrared visible ultraviolet Xrays gamma 

electromagnetic-waves/10677.html electromagnetic-waves/10677.html So why do we need to know about electromagnetic waves? Because they are so useful...

wavelengthlong – just less than a metre to a few km frequencylowest usesbroadcasting, some satellite transmissions energylow be.com/watch?v= Sgo41iUN1-s be.com/watch?v= Sgo41iUN1-s

wavelengtha few cm. frequencylow usessatellite transmissions, mobile ‘phone signals, cooking and weather forecasting. energylow c.co.uk/video/science/weird- science-sci/idkt-microwave- ovens/ c.co.uk/video/science/weird- science-sci/idkt-microwave- ovens/

wavelengthshorter less than a mm frequencylow usesthermal images, cooking optical fibres, T.V remote controls and security systems energymoderate Just like on the last video or... om/watch?v=f_CM4nlj nrQ om/watch?v=f_CM4nlj nrQ

wavelengthshort thousandths of a mm frequencymedium usesvision, photography and illumination energymoderate be.com/watch?v= sBWPCvdv8Bk be.com/watch?v= sBWPCvdv8Bk

wavelengthshort frequencymedium usesfluorescent lamps, detecting forged bank notes, disinfecting water energymoderate om/watch?v=Cz1PJVp 27tc&feature=related om/watch?v=Cz1PJVp 27tc&feature=related

wavelengthvery short frequencyhigh usesobserving inside things, medical X-rays energyhigh m/watch?v=umnnA50ID IY m/watch?v=umnnA50ID IY

wavelengthvery short frequencyvery high usessterilizing food and medical equipment, detecting cancer and its treatment energyhigh outube.com/ watch?v=Hv1 Of2_drRc outube.com/ watch?v=Hv1 Of2_drRc This video is about cancer treatment.

Now you should have all the information you need for your poster.