Math Unit Flashcards
Base unit for mass
Grams
Base unit for volume
Liters
Graphed on x axis
Variable that is changed
Independent variable
Graphed on y axis
Variable that is observed
Dependent variable
Steps of the Scientific Method
- Problem
- Hypothesis
- Experiment
- Do experimentation
- Analyzing
- Conclusion
(Definition)
Normally happens
Control group
Proposed explanation for an observation
Hypothesis
Expression of numbers, where the # is equal to or greater than 1 and less than 10
Scientific Notation
All the digits that can be known precisely in a measurement, plus the first uncertainty
Significant figures
The closeness of the measurement to the true value of what is being measured
Accuracy
How or repeatable the measurements are to each other
Percision
Problem-solving method using factors equal to one
Dimensional analysis
This fertilizer make a plant grow bigger? What is the fertilizer?
Independent
What are numbers use in chemistry often expressed in scientific notation?
Easier to work with large or small numbers
How is a number express in scientific notation written?
As the product of a coefficient and 10 raised to a power
What is the power of 10 called?
Exponent
The number that is always greater than or equal to one and less than 10
coefficient
What digit in a reported measurement is assumed to be significant?
Nonzero digit
Leftmost zeros acting as a placeholder in front of a nonzero digit in numbers less then one are what?
Not significant
True or false?
An answer is always precise as the most presice measurement from which it was calculated?
False
What two equivalent units of temperature do scientist commonly use?
Celsius and Kelvin
Ratio of the mass of an object to its volume
Density
What are two measures used in a conversation factor?
Equivalent
Base unit for length
Meter
