Answer: A quantitative measurement is one in which a particular quantity is measured. This can be as simple as measuring how long something is with a ruler or tape measure, or how heavy something is with a set of scales. This is to be distinct from a qualitative measurement in which you are only interested in the presence of absence of a particular condition. You use instrumentation to determine a quantitative measurement. You can use your 5 senses to determine qualitative measurements.
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Answer: The acoustic impedance of a material is usually measured in an Impedance Tube. This is a metal tube of 100 - 200 mm diameter, and 1.5 - 2.5 m in length. in the tube, a sample of the material is placed ay one end, with a metal plate behind. At the other end of the tube is a sound source emitting pure tones.
Along the axis of the tube, a traveling microphone may be traversed, and this measures the nodes and anti-nodes of the sound along the length of the tube.
From the magnitude of these signals and their placement along the tube, the acoustic impedance may be calculated. Mostly, it is only the sound absorption coefficient that is wanted.
Mostly, this is measured of the behavior of a building material. But it may be measured of an air volume, or even of part of a musical instrument. It may be considered to be analogous to electrical impedance, which is a native property of space, or of a material, or of an apparatus.
Answer: A clinical thermometer will offer more precise calibrated readingsthan a mercury thermometer. The range of measurable temperaturediffers between a clinical and a mercury thermometer with themercury thermometer having the wider range.
Answer: If it is an analog thermometer, the face of the thermometer is shaped in a way that magnifies the readout, but it has a very narrow angle of visibility. Once rotated to the proper angle, the once thin line becomes a thick, easy to read line.
Answer: There are four ways to get someones temperature: orally (by mouth), axillary (armpit), rectally or they can stick a thermometer in your ear. Axillary is the least accurate but sometimes is the only way to get a persons temperature.
Answer: There is no difference in the effectiveness of glass or plastic. Glass is more fragile for breaking but easier to keep clean, plastic is safer for not breaking, and harder to keep clean longer. It is a personal choice.