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Term | Definition |
---|---|
Wave | A disturbance that transfers energy from place to place |
Energy | The ability to do work or cause change |
Amplitude | The maximum distance the particles of a medium move away from their rest position as a wave through the medium |
Wavelength | The distance between two corresponding parts of a wave |
Frequency | The number of complete waves that pass a given point in a certain amount of time |
Vibration | A repeated back-and-forth or up-and-down motion |
Crest | The highest part of a converse wave |
Trough | The lowest part of the converse wave |
Resting Position | The position in which the wave would sit if there was no disturbance moving through it |
Mechanical Waves | A wave that must travel through a medium in order to be transferred |
Medium | The material through which a wave travels |
Damping | A decrease in amplitude as energy decreases because of gravity, air resistance, friction, etc. |
Speed | The rate at which someone or something is able to move or operate |
Electromagetic Wave | Waves that transfer electric and magnetic energy through the vacuum of space |
Electromagnetic Spectrum | The complete range of electromagnetic waves placed in order of increasing frequency |
Visible Light | Electromagnetic waves that are visible to the human eye |
Opaque | A material that reflects or absorbs all of the light that it strikes |
Primary Colors | Three colors that can be used to make any other color |
Primary Colors of Light | The three colors of light that can be mixed to produce white light |
Angle of Incidence | The angle that an incident line or ray makes with a perpendicular to the surface at the point of Incidence |
Law of Reflection | A rule that the angle of reflection equals the angle of Incidence |
Plane Mirror | A flat mirror that produces an upright, virtual image that same size as the object |
Concave Mirror | A mirror with a surface that curves inward |
Convex Mirror | A mirror with a surface that curves outward |
Refraction | The bending of waves as they enter a new medium at an angle |
Lens | A curved piece of glass or other transparent material that is used to refract light |
Convex Lens | A lens that is thicker at the center that at the edges |
Concave Lens | A lens that is thinner at center than at the edges |