Waves Word Scramble
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| Term | Definition |
| wave | a transfer of energy over a distance, in the form of a disturbance |
| periodic motion | motion that occurs when the vibration, or oscillation, of an object is repeated in equal time intervals |
| transverse vibration | occurs when an object vibrates perpendicular to its axis |
| longitudinal vibration | occurs when an object vibrates parallel to its axis |
| cycle | one complete vibration or oscillation |
| frequency (f) | the number of cycles per second |
| hertz (Hz) | the unit of measure of frequency |
| period (T) | the time required for one cycle |
| amplitude | distance from the equilibrium position to maximum displacement |
| equilibrium | the rest position |
| crest | high section of a wave |
| trough | low section of a wave |
| periodic waves | originate from periodic vibrations where the motions are continuous and are repeated in the same time intervals |
| pulse | wave that consists of a single disturbance |
| wavelength (λ) | distance between successive wave particles that are in phase |
| transverse wave | particles in the medium move at right angles to the direction in which the wave travels |
| longitudinal wave | particles vibrate parallel to the direction of motion of the wave |
| compression | region in a longitudinal wave where the particles are closer together than normal |
| rarefaction | region in a longitudinal wave where the particles are farther apart than normal |
| universal wave equation | v = f λ |
| fixed-end reflection | reflection from a rigid obstacle when a pulse is inverted |
| free-end reflection | reflection where the new medium is free to move and there is no inversion |
| partial reflection | some of the energy is transmitted into the new medium and some is reflected back into the original medium |
| wavefront | the leading edge of a wave |
| wave interference | occurs when two or more waves act simultaneously on the same particles of a medium |
| destructive interference | occurs when waves diminish one another and the amplitude of the medium is less than it would have been for either of the interfering waves acting alone |
| constructive interference | occurs when waves build each other up, resulting in the medium having a larger amplitude |
| supercrest | occurs when a crest meets a crest |
| supertrough | occurs when a trough meets a trough |
| principle of superposition | at any point the resulting amplitude of two interfering waves is the algebraic sum of the displacements of the individuals waves |
| resonance | the transfer of energy from one object to another having the same natural frequency |
| standing wave | created when waves travelling in opposite directions have the same amplitude and wavelength |
| node or nodal point | a point on a wave that remains at rest |
| antinode | point midway between the nodes where maximum constructive interference occurs |
Created by:
JP Brichta
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