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Chemistry Chapter 2
Vocabulary
Question | Answer |
---|---|
What is a measure of the gravitational pull on matter? | weight |
What is the amount of space occupied by an object? | volume |
What is the ratio of mass to volume, or mass divided by volume? | density |
What refers to the closeness of measurements to the correct or accepted value of the quantity measured? | accuracy |
What refers to the closeness of a set of measurements of the same quantity made in the same way? | precision |
This is calculated by subtracting the accepted value from the experimental value, dividing the difference by the accepted value, and then multiplying by 100. | percentage error |
In a measurement consist of all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated. | significant figures |
M x 10^n, the factor M is a greater than or equal to 1 but less than 10 and n is a whole number. | scientific notation |