Wave motion, Mechanical Engineering

Wave motion takes place all throughout nature, from the waves of the ocean to the electromagnetic waves that comprise visible light. Though different types of waves involve different materials, they can be described according to some key characteristics that they all share.

Mechanical waves (as opposed to light waves) transfer energy within a medium. The wave itself is not a single object or mass, but expresses a transfer of energy or vibration from one point to another. A good example is a wave on a string-individual pieces of the string only move up and down, while the wave transfers energy from one end to another. This characteristic is common to all waves: individual particles in a medium oscillate around an equilibrium point, while the wave itself translates over a distance at a certain velocity.

It is easy to visualize and draw a wave that moves horizontally while the particles in its medium move vertically-this is called a transverse wave. You can make this type of wave by shaking a string or spring up and down. In this case, particles in the material have an upward velocity as the wave approaches, followed by a downward velocity as it passes. The wave itself has its own velocity in a horizontal direction, as you can see when you whip a rope and watch the pulse travel down to the end. Thus, the material oscillates in a direction perpendicular to the wave motion.

Posted Date: 3/25/2013 4:03:34 AM | Location : United States







Related Discussions:- Wave motion, Assignment Help, Ask Question on Wave motion, Get Answer, Expert's Help, Wave motion Discussions

Write discussion on Wave motion
Your posts are moderated
Related Questions
Q. Illustrate Moisture content test ? Moisture content test: Moisture is an important constituent of moulding sand. Its content in the moulding sand can be estimated as given b

Q. What do you mean by Flares and Vents? A vent is a potential gas fuel source and a potential liquid fuel source due to carry-over from the vent. This is also true for a flare

Find out the forces in members: A braced support ABC is loaded as illustrated. Find out the forces in members AB, BC, BD and AD by the method of joints. Check out the results

Find out extension: Q: A bar having length 25mm has varying cross section. It carries load of 14KN. Find out extension if cross section is given by (6 + x 2 /100) mm 2

how to calculate Air velocity , pressure and power done by aircraft fans

Uniformly Distributed Load and Uniformly Varying Load: Uniforml y Distributed Load (UDL) A UDL is one which is spread over beam in such a manner that the rate of loading

Copper-Lead Alloys Copper-lead alloys, having a large percentage of lead have determined a considerable employ as bearing material lately. Straight, copper-lead alloys of such

Find out the centroid of the shaded : Find out the centroid of the shaded area shown in Figure Solution Net area of shaded portion of Figure = The area of full

Determine the parameter - Larson-Miller parameters: Larson-Miller parameters for an alloy at tests levels 10 MP a and 30 MP a are determined respectively as 18 × 10 4 and 1

Potential energy (PE) The energy possessed by body or system by virtue of its position above the datum level. The work done is because of its falling on earth's surface. Po