Sound energy is a form of energy that is associated with the vibrations of matter. This energy is a mechanical wave, so it needs a transmission medium to pass through, such as air and water.Know More
Although sound vibrations produce energy, the total amount of energy for even very loud sounds is minimal. A loud train engine, for example, only produces about one hundredth of a watt per square meter. Compare this to energy that comes from sunlight hitting the earth, which is about 680 watts per square meter, and it is easy to see why sound energy is not a reliable means of generating power.
The higher pressure and more intense a sound is, the more energy it produces; as the amplitude of the waves increases, so do the perception of loudness and the total energy. Sound comes from the vibrations that are produced from one object applying force to another object. Changing the transmission medium through which sound passes also changes the sound by altering the form of the sound waves. Sound travels faster through solids and liquids than it does air because the atoms through which it passes are more densely packed. This increases its energy output due to the sound being more pressurized and more intense.Learn more about Physics
Light and sound are two different types of waves. Light can travel through vacuums and outer space, and sound needs a medium to travel in and cannot be heard in a vacuum.Full Answer >
Energy cannot be created, according to the law of the conservation of energy, which was first published in an 1842 scientific article by the German Physicist Julius Mayer. Based on the same principle, energy cannot be destroyed either. In an isolated system, energy can be transformed from one form to another, but the total amount of energy within the system remains constant.Full Answer >
In physics, energy is a system's capacity to perform work, which is force acting on an object. Energy has many forms, including kinetic or mechanical energy, potential energy, light energy and heat energy. The basic rules for understanding energy are the laws of thermodynamics.Full Answer >
Heat energy is determined by how active the atoms or molecules are in a substance. The atoms and molecules in a hot substance move rapidly and seem excited while the molecules and atoms in a cool substance show less movement.Full Answer >