Sound Measurement
This unit is used to express the intensity of sound
What is a decibel (dB)?
These waves transfer energy by compressing and expanding the medium they travel through.
What are compressional waves?
These must be kept the same during an experiment to ensure valid results.
What are controlled variables?
A device that artificially creates sound frequency.
What is a tone generator?
This term refers to how closely a measured value aligns with a known value.
What is accuracy?
The length of one complete cycle of a wave.
What is wavelength?
This term refers to anything that can change in an investigation.
What is a variable?
The loudness or intensity of a sound is referred to as this.
What is volume?
The speed at which molecules vibrate, measured in Hertz.
What is frequency?
A rapid back-and-forth motion of particles that creates sound.
What is vibration?
To make adjustments to ensure that a measuring tool gives accurate readings
What is calibrate?
High-frequency sound waves produce this quality of sound.
What is high pitch?
This device visualizes sound waves as curves, representing frequency and amplitude.
What is an oscilloscope?
This term describes the background noises present in a specific location.
What is ambient sound?
This refers to anything that remains constant during an experiment.
What is a constant?
The phenomenon when sound waves travel through different mediums.
What is sound propagation?
The distance that molecules vibrate back and forth from a fixed center point, determining loudness.
What is amplitude?
A representation of the shape of a sound wave, plotted against time.
What is a waveform?
This term describes the closeness of a measured value to a standard or known value.
What is accuracy?
The measure of how effective a material is at blocking sound.
What is acoustic damping?