Sound waves, earthquakes and ocean waves are all examples of mechanical waves. Longitudinal waves, transverse waves and surface waves are the three types of mechanical waves.Continue Reading
Mechanical waves are waves that spread through a solid, liquid or gas material. The speed of the wave depends on what the medium is made of.
Longitudinal waves, such as the P waves during an earthquake, cause the medium they travel through to move parallel to the starting point of the wave. Longitudinal waves are the fastest mechanical wave type. Sound is also considered a longitudinal wave.
Transverse waves, such as the S waves during an earthquake, cause the medium they travel through to move perpendicular to the starting point of the wave. There are two components of a transverse wave. The crest is the highest point on the wave, while the trough is the lowest, and the distance between these two is half a wavelength. An entire wavelength would be from crest to crest or trough to trough. Transverse waves move slightly more slowly than longitudinal waves.
Surface waves, as the name implies, travel along the surface of a medium in both longitudinal and transverse motions. Surface waves can be anything from waves on the ocean or a lake to Rayleigh waves, which move along solid surfaces. Rayleigh waves travel more slowly than S waves and cause the most damage during an earthquake.Learn more about Optics & Waves
Some examples of radiating infrared waves are burning charcoal, heat from an electric heater, fire or a radiator emitting warmth. Infrared radiation is a type of electromagnetic radiation that objects emit when they are hot but not quite hot enough to emit visible light. Because infrared radiation can be felt in the form of heat, it is also called thermal radiation.Full Answer >
Transmission of sound waves through different mediums is an example of an experiment for kids. This could involve playing music from a device that is held in the air, under water or behind a wall, demonstrating that sound waves can travel through gas, liquid and solid phases.Full Answer >
Examples of longitudinal waves are sound waves in air and primary waves, known as P waves, in earthquakes. Longitudinal waves are waves in which the displacement of particles occurs in parallel to the direction the wave travels. These waves are also called l-waves.Full Answer >
Ultrasonic waves are sound waves transmitted above the human-detectable frequency range, usually above 20,000 Hz. They are used by some animals and in medical or industrial technological devices.Full Answer >