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25 Cards in this Set
- Front
- Back
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What is time?
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Time is the interval between two events.
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International System of Units (SI) is the standard system of measurement that is universally accepted and understood. It is based on powers of ten.
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What is the standard system of measurement that is universally accepted and understood. It is based on powers of ten.
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What is length?
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Length is the distance between two points.
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What is the SI base unit of length?
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The SI base unit of length is the meter (m)
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What is volume?
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Volume is the amount of space that matter takes-up or occupies. A liter (L) occupies the same volume as a cubic decimeter (1 d )
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What are "derived units?"
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Derived units are those that are obtained by combining SI units. volume and density are derived units.
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What is mass?
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Mass is a measure of how much matter is in an object. For each unit measured, mass is a constant, i.e. is not changed by gravity.
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What is weight?
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Weight is the measure of the force of gravity on an object
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What is the SI unit for mass?
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The SI unit for mass is the kilogram (kg).
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What is density?
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Density is the measurement of how much mass of a substance is contained in a given volume = mass/volume.
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What is the SI unit for time.
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The SI unit for time is the second (s).
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What is the name of the temperature scale employed for most scientific work?
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The Celsius scale is the one employed form most scientific work. Water freezes at 0 C and boils at 100 C.
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What is the SI unit for temperature?
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The Kelvin Scale (K) is the SI unit for temperature. 0 K is "absolute zero" and the lowest possible temperature.
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What is a graph?
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A graph is a visual display of information or data.
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What is the use of a line graph?
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A line graph is used to display trends or how data change over time.
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What is the use of a bar graph?
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A bar graph is useful for comparing information collected by counting.
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What is the use of a circle graph?
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A circle graph is useful for showing how some fixed quantity is broken down into parts.
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What does the SI prefix unit "milli-" represent.
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"deci-" = .001 = one thousandTH of a meter/gram/liter.
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What does the SI prefix unit "centi-" represent.
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"centi-" =.01 = one hundredTH of a meter/gram/liter.
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What does the SI prefix unit "deci-" represent.
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"deci-" =.1 = one tenTH of a meter/gram/liter.
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What does the SI prefix unit "kilo-" represent.
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"kilo-" = x1000 = 1000 meters/grams/liters
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How is volume measured?
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Volume is measured by liters (L), milliliters (mL) and cubic centimeters
(cm ) |
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How is density measured?
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mass/volume = g/mL = g/cm
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What is the density of water?
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1 g/mL = 1 g/cm
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What would you call .01 M?
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1 centimeter = cm = .1 m
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