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2.2/2.3
| Term | Definition |
|---|---|
| 1.Wave | a long body of water curling into an arched form and breaking on the shore. |
| 2.Energy | power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines. |
| 3.Amplitude | the maximum extent of a vibration or oscillation, measured from the position of equilibrium. |
| 4.Wavelength | the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave. |
| 5.Vibration | an oscillation of the parts of a fluid or an elastic solid whose equilibrium has been disturbed, or of an electromagnetic wave. |
| 6.Medium | the intervening substance through which impressions are conveyed to the senses or a force acts on objects at a distance. |
| 7.Mechanical Waves | an oscillation of matter, and therefore transfers energy through a medium. |
| 8.Frequency | the rate at which a vibration occurs that constitutes a wave, either in a material |
| 9.Speed | a way of measuring how quickly something is moving or being done, or something moving fast. |
| 10.Crest | a point on the wave where the displacement of the medium is at a maximum |
| 11.Trough | is the minimum or lowest point in a cycle. |
| 12.Resting Position | the position in which the wave would sit if there was no disturbance moving through it. |
| 13.Damping | a decreasing of the amplitude of an electrical or mechanical wave. |
| 14.Electromagnetic Waves | waves which can travel through the vacuum of outer space. |
| 15.Electromagnetic Spectrum | the range of wavelengths or frequencies over which electromagnetic radiation extends. |
| 16.Visible Light | a form of electromagnetic radiation |
| 17.Opaque | Not reflecting light |
| 18.Primary Colors | red, green blue |
| 19.Primary Colors Of Light | yellow, black |
| 20.Angle Of Incidence | the angle that an incident line or ray makes with a perpendicular to the surface at the point of incidence. |
| 21.Law Of Reflection | the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. |
| 22.Plane Mirror | a mirror with a flat reflective surface. |
| 23.Concave Mirror | a mirror that is curved inward in the middle |
| 24.Convex Mirror | a mirror that is curved outward in the middle |
| 25.Refraction | change in direction of any wave. |
| 26.Lens | a transparent substance with curved sides |
| 27.Convex Lens | is thicker at the centre than at the edges |
| 28.Concave Lens | are thinner at the middle |
Created by:
mario95
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