Question | Answer |
Matter | Anything that has mass and takes up space |
What is the measurement system that scientists use? | Metric System |
Mass is measured by | grams |
Distance is measured by | meter |
volume is measured by | liter |
time is measured by | seconds |
1 millimeter is _____ meters | 0.001 |
1 centimeter is _____ meters | 0.01 |
1 kilometer is _____ meters | 1000 |
Chemistry is the study of ______ | Matter |
What does not have mass? | light |
the metric unit for weight is the ______ | Newton |
to convert between units, you use the ___________ | facter-label method |
derived units are | units that are derived from the basic units that makes the metric system |
1 cubic centimeter is the same as 1 ________ | millimeter |
when measuring a liquid, the curved surface is called the _________ | meniscus |
Accuracy | An indication of how close a measurement is to the true vale |
precision | An indication of the scale on the measuring device that was used |
A digit within a number is considered to be a significant figure if it is a ____-_____ | non-zero |
A digit within a number is considered to be a significant figure if it is a ____ that is ____________________ | zero between two significant figures |
A digit within a number is considered to be a significant figure if it is a _____ at the ___________________ and to the ____________________________ | zero, end of the number, right of the decimal point |
you always represent a number as a something times a power of ____ | 10 |
Adding and Subtracting with Significant Figures: | When adding and subtracting measurements, round your answer sot that it has the same precision as the least precise measurement in the equation. |
Multiplying and Dividing with Significant Figures: | when multiplying and deviding measurements, round the answer so that it has the same number of significant figures as the measurement with the fewest significant figures. |
The definitions of the prefixes in the metric system and the integers we use in fractions are... | not considered when determining the sighnificant figures in the answer |
Density | An object's mass divided by the volume that the object occupies |