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14 Cards in this Set
- Front
- Back
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Accuracy
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A relative measure of the ability of an instrument to correctly measure the mass, or other characteristic, of object; it is also the correctness of the measurement
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Balance
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A device used to measure the gravitational mass of a body. The device consists of a lever arm that is balanced on a fulcrum, pivot. This lever arm usually has a. material pan on one end and some standard counterweights on the other end.
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Buoyancy
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The force that pushes an object up and makes it seem to lose weight while in a fluid.
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Density
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The amount of mass contained in a given volume of material.
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Gravitational Force
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The attractive force that exists between any two bodies that have mass
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Hydrometer
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A floating instrument that is used to determine the density of liquids
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Kilogram
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The basic unit of mass in the metric system; abbreviated kg. (One liter of water has a mass of 1-kilogram)
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Mass
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The amount of material in a object; expressed in grams
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Matter
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The material a thing is made of, having mass and occupying space
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Precision
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A measure of an instrument's ability to repeat a measurement and get the same result
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Range
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A measurement of the spread of a set of measurements. The range can be found by taking the difference of the largest measurement and the smallest measurement
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Ratio
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A fractional comparison of two numbers
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Specific gravity
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The ratio of the density of a material to to the density of water
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Weight
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The force due to gravity on mass
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