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- The world is dependent on waves and there are many energy waves around us everyday. For example, the light is giving off light waves, and the waves in the ocean are called surface waves.
- There are two main types of waves. Mechanical and Electromagnetic. Each has their similarites and differences.
- Mechanical and Electromagnetic Waves are widely different closely similar at the same time. Mechanical Waves need a medium to travel and cannot travel in a vacuum. A medium is any form of matter that allows a wave to travel through. A vacuum is a space where there is no medium. Another difference is that the distance and characteristics Mechanical Waves travel and have depends on the elasticity of the medium they are traveling through. The characteristics of Electromagnetic Waves on the other hand, are dependent on the action of magnetic and electric fields. Lastly, Electromagnetic Waves are faster than Mechanical Waves as Electromagnetic Waves moves at the speed of light. Electromagnetic Waves also has a special aspect. They have something called the Electromagnetic Spectrum. The Electromagnetic Spectrum is the range of frequencies and wavelengths of many different lights in our life. What allows us to see is the Visible Light Spectrum. This is part of the EM Spectrum and is between the nanometers 380 and 700.
- Mechanical and Electromagnetic Waves also have many similarites. Some are that they can both travel through a medium and they are both measured in amplitude, wavelength, and frequency. They also transport energy from one destination to another.
- Transverse Waves are waves that travel perpendicular to the direction the wave is traveling. Examples of Transverse Waves are light, water, and sound. The parts that make up Transverse Waves are a crest, trough, wavelength, and amplitude. The crest is the point of maximum height of the wave while the trough is the point of the lowest height of the wave. A wavelength in a Transverse is the distance between crest to crest and trough to trough. The amplitude is the height between the crest and resting position or trough and resting position.
- There are three sub-waves branching off the two main waves. Transverse, Longitudinal, and Surface.
- A Surface Wave is a type of mechanical wave that is generated along the interface between differing media. Surface Waves can have a combination of characteristics from both Longitudinal and Transverse Waves. Particles in a Surface Wave move in a motion that is both parallel and perpendicular to the direction the wave is traveling. Examples of Surface Waves are Ocean Waves, Seismic Waves, Gravity Waves, and more.
- Longitudinal Waves are waves where the vibration of the medium is parallel to the direction where the wave travels. An example of a longitudinal wave is a sound wave. Longitudinal waves are made up of compressions, rarefaction, wavelength, and amplitude. Compression is the point where the particles are most compressed. Rarefaction is the area where the particles are spread the furthest apart. Wavelength is measured by measuring the distance from a compression to compression or rarefaction to rarefaction. Amplitude is measured by the maximum amount of displacement of the particles in the compression.
- Wave properties also have many relationships with each other.Frequency: Frequency has a directly proportional relationship with Energy. Frequency has an inversely proportional relatinship with Wavelength and Amplitude.Wavelength: Wavelength has a directly proportional relationship with Amplitude. Wavelength has an inversely proportional relationship with Frequency and Energy.Energy: Energy has a directly proportional relationship with Energy and Amplitude. Energy has an inversely proportional relationship with Wavelength.Amplitude: Amplitude has a directly proportional relationship with Wavelength and Energy. Amplitude has an inversely proportional relationship with Frequency.
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