Examlex
The phrasing used in closed-ended questions should allow respondents to attach their own meanings and interpretations to the question.
Sound Properties
Characteristics of sound waves, including amplitude, frequency, and timbre, that determine the perception of sound.
Medium
A channel or means for the transmission of information or data, or a substance in which something else is conveyed or occurs.
Vibration
An oscillation or rapid motion back and forth or up and down of particles in a medium or an object.
Molecules
The smallest unit of a chemical substance that can exist independently while retaining the composition and chemical properties of the substance.
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