Int. Sci. Ch. 15
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| Medium | A physical environment in which phenomena occur
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| Mechanical Wave | A wave that requires a medium through which to travel
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| Electromagnetic Wave | A wave that consists of oscillating electric and magnetic fields, which radiate outward at the speed of light
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| Transverse Wave | A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
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| Longitudinal Wave | A wave in which particles of the medium vibrate parallel to the direction of wave motion
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| Crest | Highest point of a wave
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| Trough | Lowest point of a wave
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| Amplitude | The maximum distance that the particles of a wave's medium vibrate from their rest position
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| Wavelength | The distance from any point on a wave to an identical point of the next wave
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| Period | The time that it takes a complete cycle or wave oscillation to occur
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| Frequency | The number of waves produced in a given amount of time
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| Doppler Effect | An observed change in the frequency of a wave when the source or observer is moving
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| Reflection | The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it doesn't go through
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| Diffraction | A change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
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| Refraction | The bending of a wave front as the wave front passes between two substances in which the speed of the wave differs
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| Interference | The combination of two or more waves that results in a single wave
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| Constructive Interference | A superposition of two or more waves that produces an intensity equal to the sum of the intensities of the individual waves
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| Destructive Interference | A superposition of two or more waves that produces an intensity equal to the difference of the intensities of the individual waves
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| Wave | A disturbance that carries energy through matter or space
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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