1. Properties
1.1. Travels at the speed of light through vacuum
1.2. Transverse
1.3. Obey laws of reflection and refraction
1.4. Transfers energy from one place to another
1.5. Obeys the formula: v = fλ
2. Effects
2.1. Lower frequencies (Light, Microwave, Radio, Infrared rays)
2.1.1. Heating effect on tissues and cells
2.2. Higher frequencies (Gamma Rays, X-Ray, Ultraviolet rays)
2.2.1. Ionisation of cells and tissues
2.2.1.1. This causes electrons to be knocked off atoms, causing ions and free radicals that may cause damage to the skin.
3. What is it?
3.1. Waves that can be formed without molecules and waves that do not require a medium to travel.
4. Uses
4.1. 7 Main Components
4.1.1. Infrared Rays
4.1.1.1. Produced by hot objects
4.1.1.2. Used in a infrared detector to convert the infrared into a visible image.
4.1.2. X-Ray
4.1.2.1. Produced by firing high-speed electrons at a metal target
4.1.2.2. Used to produce an image of a bone structure
4.1.2.3. May cause damage to living cells if exposed too much
4.1.3. Gamma Ray
4.1.3.1. Produced through the emission of the nucleus of radioactive atoms.
4.1.3.2. Help kill cancerous cells and sterilize medical instruments.
4.1.3.3. Can cause damage to living things as they are very energetic.
4.1.4. Visible Light
4.1.4.1. Encompasses all colours from a spectrum
4.1.4.2. Helps living things to see
4.1.5. Microwave
4.1.5.1. Produced by special electronic devices, such as Klypton
4.1.5.2. Used to heat food up and also in satellite communication
4.1.6. Radio
4.1.6.1. Produced from electrons oscillating in a elecrical circuits
4.1.6.2. Used for TV and radio transmissions.
4.1.7. Ultraviolet Rays
4.1.7.1. Produced from sunlight
4.1.7.2. Helps in sun-tanning, kills bacteria and helps in checking counterfeit notes
4.1.7.3. Can cause damage to the skin if exposed too much