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21 Cards in this Set
- Front
- Back
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measurements represent what? |
quantities |
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what do quantities have? |
magnitude, size, and amount |
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measurements are not |
quantities |
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1 centimeter cubed is equal to |
1 milliliter |
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how many milliliters in a liter? |
1000 |
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how many centimeters in a meter? |
100 |
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Density equals what? |
Mass/volume |
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1 inch is how many centimeters? |
2.54 cm |
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accuracy |
how close you are to being right |
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precision |
how close are the set of measurements you came up with |
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how do you solve for percent error?
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lab value - paper value / paper value x 100 |
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What are the four rules of significant figures and zeros? |
zeros between nonzeros are significant zeros in front of nonzeros are not significant zeros at end of number and right of decimal are significant zeros at end of number and left of decimal are not significant |
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what is the rule with adding and subtracting for significant figures? |
the least places to the right of the decimal is how many places to the right the answer will have |
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what is the rule with multiplying and dividing and significant figures? |
the fewest number of significant figures with have the same number as the answer |
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what is the formula for directly proportional? What is the line like?
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y/x=K (constant) straight line |
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what is the formula for inversely proportional? what is the line like? |
xy=K (constant) curved |
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define quantitative |
it is numbers; statistics |
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define qualitative |
the qualities of something; not measured in numbers |
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Is weight a quantity? |
no, as it depends gravity |
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What is SI? |
the metric system |
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define theory |
an explanation for something that is well supported by facts found through repeated observations and experiments |
