Waves~Unit Quiz 03/13/2012 Modified Pick Any 15
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Created by:
dmoss Teacher on March 11, 2012
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26 terms
Terms | Definitions |
|---|---|
 Compressions | The parts where the coils are close together in a longitudinal wave |
| Doppler effect | Change in the apparent frequency of a wave as observer and source move toward or away from each other |
| Convex lens | Lens such that a beam of light passing through it is brought to a point or focus, lens is thicker in the center |
| Concave lens | A lens that is thinner in the center than at the edges, a lens such that a parallel beam of light passing through it is caused to diverge or spread out |
| Electromagnetic spectrum | The complete range of electromagnetic wave frequencies and wavelengths |
| Surface waves | Combination of transverse and longitudinal waves. The wave moves from one medium to another. EXAMPLE: ocean waves |
| Energy | The ability to do work |
| Speed | Speed=Wavelength xFrequency,Frequency=Speed/Wavelength, Wavelength=Speed?Frequency |
| Frequency | Is the number of complete waves that pass a given point in a certain amount of time |
| Longitudinal (compressional) wave | The wave travels in the same direction as the disturbance |
| Amplitude | The maximum height of a wave from its rest position;LARGE AMPLITUDE = MORE ENERGY; SMALL AMPLITUDE = LESS ENERGY |
| Wave length | The distance between any two crests or compressions next to each other in a wave; SHORTER WAVELENGTH = MORE ENERGY; LONGER WAVELENGTH =LESS ENERGY |
| Electromagnetic waves | Waves that transfer electric and magnetic energy through the vacuum of space. |
| Vacuum | An empty area or space |
| Law of Reflection | Angle of incidence = angle of reflection |
| Vibration | A repeated back-and-forth or up-and-down motion |
| Interference | The meeting and combining of waves |
| Rarefraction | A decrease in wave density., Change in direction of a wave that causes particles to move back and forth along the direction the wave travels |
| Refraction | A change in direction of a wave when it changes speed as it travels from one material to another. |
| Diffraction | The bending of waves around a barrier or through an opening |
| Mechanical Wave | A wave that requires a medium through which to travel |
| Medium | The material through which a wave travels |
| Wave | A disturbance that carries energy through matter or space. |
| Wavelength | The distance between one point on a wave and the corresponding point on an adjacent wave (example :crest to next crest) |
| Trough | The lowest point of a wave |
| Crest | The highest point of a wave |
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