Examples of Objective measurement in the following topics:
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- It can be measured objectively or subjectively.
- Objective measurement is taken when tools are used to gauge accuracy.
- Subjective measurement is more of an opinion.
- When human listeners hear a sound and compare it to another sound they have heard, and decide which one they enjoy more, this is a subjective measurement of sound quality.
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- Volume is a measure of the three-dimensional space an object occupies, usually taken in terms of length, width and height.
- Volume is measured geometrically by multiplying an object's three dimensions—usually taken as length, width and height.
- Thus a measuring cup can accurately measure the volume of a liquid, whereas a gas will always fill the entire container, more or less uniformly, no matter how little gas there is.
- A measuring cup can be used to measure volumes of liquids.
- This cup measures volume in units of cups, fluid ounces and millilitres.
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- Gauge pressure is much more convenient than absolute pressure for practical measurements and is widely used as an established measure of pressure.
- Barometers are devices used to measure pressure and were initially used to measure atmospheric pressure.
- Such pressure measuring devices are more practical than hydrostatic barometers for measuring system pressures.
- Many modern pressure measuring devices are pre-engineered to output gauge pressure measurements.
- While the aneroid barometer is the underlying mechanism behind many modern pressure measuring devices, pressure can also be measured using more advanced measuring mechanisms.
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- Length is a physical measurement of distance that is fundamentally measured in the SI unit of a meter.
- Length can be defined as a measurement of the physical quantity of distance.
- Many qualitative observations fundamental to physics are commonly described using the measurement of length.
- In order to describe length in a standardized and quantitative manner, an accepted unit of measurement must be utilized.
- As such, a standard unit of measurement that is internationally accepted is needed.
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- Null measurements balance voltages so there is no current flowing through the measuring devices that would interfere with the measurement.
- Null measurements balance voltages, so there is no current flowing through the measuring device and the circuit is unaltered.
- A potentiometer is a null measurement device for measuring potentials (voltages).
- Many so-called ohmmeters measure resistance.
- The potentiometer is a null measurement device.
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- Pressure is often measured as gauge pressure, which is defined as the absolute pressure minus the atmospheric pressure.
- For most applications, particularly those involving pressure measurements, it is more practical to use gauge pressure than absolute pressure as a unit of measurement.
- Gauge pressure is a relative pressure measurement which measures pressure relative to atmospheric pressure and is defined as the absolute pressure minus the atmospheric pressure.
- For most working fluids where a fluid exists in a closed system, gauge pressure measurement prevails.
- The situation changes when extreme vacuum pressures are measured; absolute pressures are typically used instead.
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- Mass is the quantity of matter that an object contains, as measured by its resistance to acceleration.
- Mass, specifically inertial mass, is a quantitative measure of an object's resistance to acceleration.
- Four of the seven base units in the SI system are defined relative to the kilogram, so the stability of this measurement is crucial for accurate and consistent measurements.
- This value, though given in kilograms, is actually the non-SI unit of measure known as the kilogram-force.
- This measurement changes depending on the gravitational pull of the opposing body.
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- Length is one of the basic dimensions used to measure an object.
- In geometric measurements, length is the longest dimension of an object.
- In other contexts "length" is the measured dimension of an object.
- Length is a measure of one dimension, whereas area is a measure of two dimensions (length squared) and volume is a measure of three dimensions (length cubed).
- There are several units that are used to measure length.
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- SI prefixes precede a basic unit of measure to indicate a multiple or fraction of the unit.
- A metric prefix, or SI prefix, is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit.
- The system for measuring length using the United States customary system is based on the inch, foot, yard, and mile.
- Likewise, units of area are measured in terms of square feet, and units of capacity and volume are measured in terms of cubic inches, cubic feet, or cubic yards.
- These can include the minute, hour, and day used in temporal measurements, the liter for volumetric measurements, and the degree, minute, and second used to measure angles.
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- Voltmeters and ammeters are used to measure voltage and current, respectively.
- Any measurement that can be converted to voltage can be displayed on a meter that is properly calibrated; such measurements include pressure, temperature, and flow.
- An ammeter measures the electric current in a circuit.
- An ammeter (A) is placed in series to measure current.
- Note that terminal voltage is measured between points a and b.