Essays on Sound Energy

Introduction

Ultrasound can be defined as the use of high frequency sound waves (having a frequency above the range, which is audible to the normal human ear, i. e. varying between 20 Hz to 20,000 Hz) for changing the chemical properties of a substance (Ter Haar, 1999). Besides medical imaging, nowadays ultrasound has become an important therapy for the management of several orthopaedic clinical conditions (Ter Haar, 1999). Stimulation of the tissues beneath the skin’s surface using high frequency sound waves is likely to result in several therapeutic benefits. Tennis elbow (TE) or lateral humeral epicondylitis can be considered ...

Introduction to Wave

Wave motion is known as transfer and moving energy from one point to another, wave is also referred as oscillation or disturbance that travels along the matter or space. There are two categories of waves they include transverse and longitudinal waves. In longitudinal wave particles of the medium are displaced in a direction parallel to the energy transferred while in a transverse wave particles of the medium are displaced in a direction perpendicular to the direction of energy transferred (Hewitt & Paul, 35). Waves can be moved along ropes across the surface of strings and water. Some waves can travel through space. ...

Introduction

Electromagnetism refers to the creation of a magnetic force from the movement of electrical charges. In order to find application in most electrical appliances, electromagnetism concerns the use of electric current to make electromagnets. This field of electricity is called Electrodynamics. It can also mean using magnetic field to induce an electric current. This field of electromagnetism is called Electromagnetic Induction. Almost all electrical appliances use one of the two types of electromagnetism mentioned above especially those with moving parts. This paper discusses the application of electromagnetism in a speaker.

Application of electromagnetism in a speaker

The speaker is basically an electronic transducer which converts electric energy ...

Assignment 1

Energy refers to the ability to produce changes in a given system and it exists in different forms, but it is broadly categorized into two major forms which are Kinetic energy and Potential energy. It is further grouped into many other forms that include; heat energy, light energy, mechanical energy, sound energy and geothermal energy. Energy is converted from a given form to another depending on the energy needs of the user. This transformation simply implies conversion of energy from one state to another, which may occur naturally or it can be manipulated using various energy-consuming machines. In scientific terms, a device ...

The Mobile Phone: Parts and Choice of Materials

The mobile phone is one of the greatest inventions of all time (Guthrie, 2008). It has revolutionized the way people communicate and perform their day to day activities. Cell phones allow remote communication with people in far-away places, including those in other continents. Initially, cell phones were only meant to people to call and send short messages in the form of SMSs. However, cell phones have now advanced and are being used for a wide variety of purposes including taking pictures and videos, listening to music, browsing the internet, playing games, organizing events amongst other uses. The functionalities that a phone ...