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A 'wiggle' in space and time; a disturbance that repeats regularly in space and time and that is transmitted progressively from one place to the next with no actual transport of matter.
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refers to the distance from the midpoint from the crest or trough of the wave
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Chaper 25 Vocabulary
cdeutsch/ursuline
| Question | Answer |
|---|---|
| A 'wiggle' in space and time; a disturbance that repeats regularly in space and time and that is transmitted progressively from one place to the next with no actual transport of matter. | wave |
| refers to the distance from the midpoint from the crest or trough of the wave | amplitude |
| low points on a wave | troughs |
| The time required for a pendulum to make one to-and-fro swing. In general, the time to complete a single cycle. | Period |
| distance from the top of one crest to the top of the next one | wavelengths |
| a repeating back and forth motion about an equilibrium position | vibration |
| An oscillation, or repeating back and forth motion of a pendulum | simple harmonic motion |
| the number of vibrations an object makes in a unit of time. | pendulum |
| The time required for a pendulum to make one to-and-fro swing. In general, the time to complete a single cycle. | Period |
| A curve whose shape represents the crest and troughs of a wave, as traced out by a swing pendulum that drops a trail of sand over a moving conveyer belt. | sine curve |
| One of the places in a wave where the wave is highest or the disturbance is greatest. | crest |
| unit of frequency | hertz (Hz) |
| whenever the motion of the medium is at right angles to the direction in which a wave travels | transverse waves |
| when the particles oscillate parallel to or along the direction of the wave rather than at right angles to it | longitudinal wave |
| is a regular arrangement of places where wave effects or increased decreased or neutralized | interference pattern |
| the crest of one wave overlaps the crest of another and their individual effects add together. The result is a wave of increased amplitude | constructive interference |
| The crest of one wave overlaps the trough of another and their individual effects are reduced. The high part of one wave fills in the low part of another. The waves cancel each other. | destructive interference |
| The crest of one wave overlaps the trough of another to produce regiosn of zero amplitude | out of phase |
| The crest of one wave overlaps the crest of another wave and the troughs overlap. | in phase |
| is a wave that appears to stay in one place; it does not seem to move through the medium | standing wave |
| the stationary points on a standing wave | nodes |
| the position on a standing wave with the largest amplitude | anti-nodes |
| this apparent change in frequency due to the motion of the source or receiver | the Doppler effect |
| an increase in frequency; the increase is toward the high frequency of the spectrum | blue shift |
| a decrease in frequency referring to the low frequency or end of the color spectrum | red shift |
| the crest overlap at the edges and the pattern made by these overlapping crests is a V-shape | bow wave |
| is a three dimensional wave that consists of overlapping spears that form a cone | shock wave |
| the sharp crack heard when the shock wave sweeps behind a supersonic aircraft that reaches the listeners | sonic boom |
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cdeutsch
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