Physical Science Flashcards
An operational definition is a “___________” definition
Working
An idea that is not proved, but that we can use as the basis to prove other things
Presupposition
The study of matter and energy and how they interact
Physics
________________ involves research to discover new ways to use scientific knowledge for human benefit
Applied science
Anything that occupies space and has mass
Matter
Distinct particles formed when two or more atoms bond together
Molecules
What has definite volume, but no definite shape
Liquids
The _________ __ __ ______________ of matter states that matter can be neither created nor destroyed, but only changed from one form to another
Law of conservation
The change of a liquid to a gas is called
Vaporization
A measurement is a comparison of a dimension of an object or substance to an appropriate standard, usually an instrument with a
Calibrated scale
Measured data has 2 parts:
A number and dimensional unit
A kilometer is bigger than a
Centameter
The difference between a measurement an the dimensions actual value is called
The error of the measurement
Every scientific measurement contains
Error
When adding and subtracting data, it must have the
Same units
