Chapter 2 Flashcards
A logical approach to the solution of problems that lend themselves to investigations by observing, generalizing, theorizing, and testing.
Scientific Method
Collecting data and measurements of both quantitative and qualitative.
Observing
Specific portion of matter in a give region that has been set selected for study during an experiment.
System
Generalization that describes a variety of behaviors in nature.
Law
A broad generalization that explains a body of known facts or phenomena.
Theory
The system of measurement used by science.
Metric System
The basic unit of length.
Meter(m)
Equal to 1000 cm3
Liter(L)
The basic unit of mass.
Kilogram(kg)
Derived unit of mass. (Mass/Volume)
Density
Unit of time.
Second
The closeness of a measurement to the accepted value.
Accuracy
Agreement among several measurements that have been made in the same manner.
Precision
Digits in a number that are known with certainty.
Significant Figures
Ex: 3.0 E 8m/sec
Scientific Notation
Always result in a graph of a straight line.
Directly Proportional
Results in the plotting of a hyperbola.
Inversely Proportional
A measure of the average K.E. of the molecules.
Temperature
The sum of the total K.E. of the molecules in the sample of matter.
Heat
The SI unit of heat energy and all other forms of energy.
Joule(J)
The amount of heat energy needed to raise the temp of a given sample of matter 1 degree C.
Heat Capacity
The amount of heat energy needed to raise the temp of 1 g of a substance 1 degree C.
Specific Heat
