Definitions for Heat, Light and Sound.......
HEAT!!
HEAT IS THE QUALITY OF BEING HOT; HIGH TEMPERATURE!
Energy: the property of matter and radiation that is manifest as a capacity to perform work Insulator: a substance that does not readily allow the passage of heat or sound. Medium: the intervening substance through which impressions are conveyed to the senses or a force acts on objects at a distance. Radiation: the emission of energy as electromagnetic waves or as moving subatomic particles Thermal Energy: Thermal energy is generated and measured by heat of any kind. It is caused by the increased activity or velocity of molecules in a substance, which in turn causes temperature to rise accordingly. Thermal Expansion: Thermal expansion is the tendency of matter to change in volume in response to a change in temperature. Thermometer: an instrument for measuring and indicating temperature Light: Absorb: take in or soak up (energy, or a liquid or other substance) Angle of Incidence: the angle that an incident line or ray makes perpendicular to the surface at the point of incidence. Angle of Reflection: the angle made by a reflected ray with a perpendicular to the reflecting surface Concave: having an outline or surface that curves inward like the interior of a circle or sphere. Convex: having an outline or surface curved like the exterior of a circle or sphere. Diffuse: spread or cause to spread over a wide area Light: the natural agent that stimulates sight and makes things visible. light spectrum: The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. light waves: visible light is electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight Opaque: not able to be seen through; not transparent. Prism: a solid geometric figure whose two end faces are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms. reflection: the throwing back by a body or surface of light, heat, or sound without absorbing it. Refraction: the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another Roy G. Biv: Roy G. Biv is an acronym for the sequence of hues commonly described as making up a rainbow: Red, Orange, Yellow, Green, Blue, Indigo and Violet. Spectrum: a band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength. Translucent: a substance that allows light, but not detailed images, to pass through; semitransparent. Transmitted: to pass from one place to another Transparent: (of a material or article) allowing light to pass through so that objects behind can be distinctly seen. White light:all the wavelengths of the visible spectrum at equal intensity. Sound: Amplitude (volume): the maximum extent of a vibration or oscillation, measured from the position of equilibrium. Frequency (pitch): the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light) Sound wave: a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air. Speed of Sound: The speed of sound is the distance traveled during a unit of time In dry air at 20 °C, the speed of sound is 343.2 meters per second. Subsonic: relating to or flying at a speed or speeds less than that of sound. Supersonic: involving or denoting a speed greater than that of sound. Wavelengths: the distance between successive crests of a wave, esp. points in a sound wave or electromagnetic wave. |