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Unit 2.1 Energy

Absorption The process of absorbing or of being absorbed
Amplitude A measurement that indicates the height of a wave, from the crest to the trough
Diffraction Spreading of waves around obstacles.
Electric Energy Energy that's stored in charged particles within an electric field.
Energy The ability to do work.
Frequency Number of waves that pass a fixed point per unit time.
Intensity The measurable amount of a property, such as force, brightness, or a magnetic field.
Law of Conservation of Energy A principle stating that energy cannot be created nor destroyed, but can be altered from one form to another.
Mechanical Energy The energy that is possessed by an object due to its motion or due to its position. (can be both KE and PE)
Mechanical Wave A wave that is not capable of transmitting its energy through a vacuum. These waves require a medium in order to transport their energy from one location to another. (Ex. sound wave)
Medium The intervening substance through which impressions are conveyed to the senses or a force acts on objects at a distance.
Pitch The degree of highness or lowness of a tone.
Reflection To throw or bend back (light, for example) from a surface.
Refraction A change in direction of a wave as a result of its traveling at different speeds at different points along the wave front.
Transformation of Energy The process of changing one form of energy to another.
Wave The movement of energy through some medium.
Wavelength The measurement from one wave's crest to another.
Potential Energy The energy of a particle or system of particles derived from position, or condition, rather than motion. (stored energy)
Kinetic Energy The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed. (energy in motion)
Transverse wave A wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.
Longitudinal wave A wave in which particles of the medium move in a direction parallel to the direction that the wave moves.
Created by: lcrowe