Dimensional Analysis
Expression of a ratio of equal quantities with different units in the numerator and denominator?
conversion factor
Name of the meaningful number of digits in a recorded result.
significant figures
Name for a substance that cannot be separated into simpler substances by chemical means?
element
Correct conversion factor when converting millimeters to feet? (1 foot = 305 mm)
1 foot/305 mm
The number of significant figures in the recorded result of 50.0.
3
Color, melting point, boiling point, and density are all examples of ________ properties.
physical
Name of a conceptual step-by-step breakout (flow chart) of a calculation where the boxes represent the steps and the arrows are the conversion factors.
roadmap
The definition of the magnitude of scatter in repeated measurements.
precision
The number 12.80927 rounded to six significant figures.
12.8093
Number of minutes does it takes light from the sun to reach the earth. (The distance of earth to the sun is 93 million miles; 1 min = 60 s; the speed of light is 3e8 m/s; 1 mile = 1,609 meters.)
8.3 min
The name given to the last digit in a recorded result?
first uncertain digit
Expression of 500,000 in exponential notation with 3 significant figures.
5.00e5
Number of milliseconds equal to six months. Provide answer to 2 sig figs. (1 d = 24 h; 60 s = 1 min; 30.4137 d = 1 month; 60 min = 1 hr)
1.6e10 ms
Expression for the correct answer with the correct number of significant figures in the calculation below?
121.720 - 15.03742 =
106.683
Properties that depend on the amount of matter and can be added together are called ________ properties.
extensive