Term
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Definition
| a defined unit in a system of measurement that is based on an object or event in the physical world and is independent of other units |
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Term
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Definition
| the amount of mass per unit volume |
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Term
| What is the equation for density? |
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Definition
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Term
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Definition
| a unit defined by a combination of base units |
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Term
| What is a conversion factor? |
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Definition
| a ratio of equivalent values used to express the same quantity, always equals 1 and changes the units of a quantity without changing its value |
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Term
| What is dimensional analysis? |
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Definition
| a systematic approach to problem solving that uses conversion factors to move from one unit to another |
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Term
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Definition
| the difference between an experimental value and an accepted value |
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Term
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Definition
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Term
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Definition
| the SI base unit of temperature-not measured in degrees |
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Term
| What is the SI base unit for mass? |
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Definition
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Term
| What is the metric unit of volume equal to one cubic decimeter? |
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Definition
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Term
| What is the SI base unit for length? |
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Definition
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Term
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Definition
| the ratio of an error to an accepted value |
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Term
| What is the SI base unit for time? |
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Definition
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Term
| What is scientific notation? |
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Definition
| a method used to express any number as a number between 1 and 10 multiplied by 10 raised to a power(exponent) an example would be 1.24 x 1012 |
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Term
| What is a significant figure? |
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Definition
| the number of all known digits reported in measurements plus one estimated digit |
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Term
| What is the equation for percent error? |
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Definition
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Term
| How do you convert Celsius to Kelvin? |
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Definition
| K=273+temperature in Celsius |
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Term
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Definition
| you divide the dependent y variable by the independent x variable-rise over run |
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Term
| What is the difference between accuracy and precision? |
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Definition
| Accuracy refers to how close a measured value is to an accepted value where precision is how close a series of measurements are to one another. |
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Term
| When multiplying scientific notations what do you do? |
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Definition
| multiply the coefficients and add the exponents |
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Term
| What do you do in the division of numbers in scientific notation? |
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Definition
| divide coefficients and subtract the exponents |
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Term
| How many significant digits does 12.3 have? Give the rule explaining why. |
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Definition
| 3; Non-Zero numbers are always significant |
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Term
| How many significant digits does 1098.3 have? Give the rule why. |
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Definition
| 5; because Zeros between nonzero numbers are always significant |
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Term
| How many significant digits does 12.0 have? Give the rule why. |
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Definition
| 3 because All final zeros to the right of the decimal are significant |
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Term
| How many significant digits does 0.0023 have? give the rule why. |
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Definition
| 2; In a decimal number, zeros that come before the significant number are not significant |
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Term
| How many significant digits does 23,000 have? Give the rule why. |
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Definition
| 2; trailing zeros without a decimal are not significant, however if the number was 23,000.0 the zeros would be significant |
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Term
| What determines the number of significant digits when adding, subtracting, multiplying, or dividing? |
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Definition
| the number with the lowest number of significant digits |
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Term
| How do you round 5's when there are zeros after them or no digits after? |
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Definition
| Round down if the digit before the 5 is even and round up if the digit before the 5 is odd |
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Term
| What are the 3 major types of graphs? |
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Definition
| Circle graph, Line Graph, and Bar Graph |
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Term
| What graph is useful for showing parts of a whole? |
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Definition
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Term
| What graph is useful in showing how quantities vary across categories? |
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Definition
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Term
| What graph is used to show the relationship between the independent variable and the dependent variable? |
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Definition
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Term
| What is interpolation when interpreting a graph? |
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Definition
| it is any data points that are included on the line between the recorded points of data |
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Term
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Definition
| extending a line beyond the plotted points in order to estimate futher data |
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Term
| What is the base unit for (a)temperature, (b)length, (c) mass, (d)time? |
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Definition
| a. Kelvin(K); b.meters(m); c. kilogram(kg); and d.seconds(s) |
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