What are the uses and hazards of the waves that form the electromagnetic spectrum?
Electromagnetic radiations are disturbances in an electric field. They travel as waves and move energy from one place to another. They can all travel through a vacuum and do so at the same speed. The waves cover a continuous range of wavelengths called the electromagnetic spectrum. The uses and hazards of the radiations in different parts of the electromagnetic spectrum depend on their wavelength and frequency. You need to be able: to evaluate the possible hazards associated with the use of different types of electromagnetic radiation to evaluate methods to reduce exposure to different types of electromagnetic radiation. The Electromagnetic Spectrum Electromagnetic radiation travels as waves and moves energy from one place to another. All types of electromagnetic waves travel at the same speed through a vacuum (space). The electromagnetic spectrum is continuous but the wavelengths within it can be grouped into types of increasing wavelength and decreasing frequency: gamma rays, X-rays,
