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Waves
Gr. 11 Physics - Waves
| Term | Definition |
|---|---|
| Mechanical Waves | Requires a material medium such as water or air |
| Electromagnetic Waves | Requires no medium. Can travel through space at the speed of light |
| Transverse Waves | cause the particles of the medium to vibrate perpendicular to the direction in which the waves are moving |
| Longitudinal Waves | Cause the medium to vibrate parallel to the direction which the wave is traveling. Consists alternating areas of high pressure compression |
| Surface Waves | A mixture of longitudinal and transverse waves |
| Wave Pulse | Single displacement |
| Traveling pulse | Regular displacement |
| Period | Short time interval which the notion repeats itself. measured in seconds |
| Frequency | The number of waves that pass a given point in one second. measured by Hz |
| Rest Position | The position an object assumes at rest |
| Phase | When vibrating objects such as a pendulum have the same amplitude and frequency but don't have the same point in their cycles at the same time |
| Crests | The high points of each wave motion |
| Troughs | The low points of each wave motioin |
| Amplitude | The height of the wave above the original undisturbed medium |
| Wavelength | The shortest distance between points where the wave pattern repeats itself. Measured in meters |