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20 Cards in this Set
- Front
- Back
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meniscus
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curve seen at a liquid's surface, especially in a graduated cylinder
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spring scale
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an instrument for measuring weight
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metric system
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a decimal system of measurements based on the meter; SI
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second
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the basic unit of time;
9,192,631,770 vibrations of a cesium atom |
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newtons (N)
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the metric unit of weight
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balance
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an instrument for measuring mass
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volume
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any space defined by length, width, and height
volume=length x width x height v=lwh |
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mass
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the quantity of matter in an object
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meter (m)
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the basic unit of length of the metric system; 39.37 inches
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liter (L)
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the volume of a cubic decimeter
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significant digits (figures)
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all of the certain digits plus one doubtful digit in
a measurement |
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density
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the mass in a unit of volume
density=mass/volume d=m/v |
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law of mass conservation
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in all chemical and physical changes, matter is neither created nor destroyed
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weight
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the measure of the force of gravity on an object
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water displacement method
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measuring the volume of an irregularly shaped object by submerging it in water contained in a graduated cylinder and taking before and after measurements
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unit analysis
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a mathmematical tool to convert between units
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units
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descriptive notes that accompany numbers
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SI or Systeme International
(French for International System) |
the systematized units of the metric system; time (second), temperature (Kelvin), electrical current (ampere)which simplifies and standardizes all scientific work
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kilogram (kg)
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the mass of a liter of water; 1000 grams
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scientific notation
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using the power of 10 to express very large or very small numbers
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