Light energy is a type of kinetic energy with the ability to form types of light people can see as well as invisible waves. Light is a form of electromagnetic radiation, and hot objects, such as light bulbs, the sun and lasers, emit it.Know More
Light consists of photons, which are essentially tiny packets of energy. When an object's atoms heat up, this results in the production of photons and is how photon production occurs in most cases. The electrons in atoms find excitement from the heat, which results in them earning extra energy. The release of this energy is in the form of a photon, and more photons come out as the object gets hotter.
When light travels, it is in the form of a wave. However, no material or matter is necessary to carry the energy along for the ride. Because of this, light can travel through a space that has no air. This differs from sound waves because they have to pass through a liquid, a solid or a gas. Light energy is very fast, and nothing travels faster. When traveling through a vacuum, the speed of light is equal to 186,282 miles, or almost 300,000 kilometers, per second.Learn More
Convex and concave lenses work through understanding how light interacts with different mediums, specifically glass or glass compounds, and manipulating the medium's shape to achieve some desired magnification effect. Lenses are designed incorporating convex and/or concave designs, depending on the desired effect and application.Full Answer >
The human voice ranges from a whisper, 20 decibels, to the loudest shout ever recorded at 121 decibels, which is equivalent to the volume of noise produced by a chainsaw or leaf blower. This record was set by a teacher, Annalisa Flanagan in 2010.Full Answer >
Sound waves are longitudinal waves of sound formed as it occurs. They cannot be seen with the naked eye, but they can be represented on a graph. There, sound waves are displayed as a series of vertical lines.Full Answer >
Light travels through a vacuum at 186,282 miles per second; through the Earth's atmosphere, it moves at 186,227 miles per second. The speed of light, in general, is affected by the medium through which it moves.Full Answer >