Science Basics Flashcards
(26 cards)
Chemistry
THE study of matter; its structure, properties, compostsition, changes, and how it realeases and absorbs energy
Law/Principle
A valid statement based on repeated observation and powerful evidence- accepted as a fact
Hypothesis
A proposed explanation based on observation
What are the two concepts of quantitative measurement
Precision and Accrucary
What are the two types of scientific measurements
Qualitative and Quativtative
What are the two types of zeros
Non-zeros and zeros
What is the two definition of Technology
Using science to solve practical problems
or
The application of a scientific principle
Better technology leads to better _______
Measearments
Theory
A logical explanation based on given evidence
Significant Figures
the minimum amount of digits required to describe a measurement- It involves one estimate digit
What are the two types of sciencfic variables
Dependent and Independent
Where does all good Science start?
Observation
Observation
Something that someone notices in the natural or applied world.
What are four things that make good Qualitative measures
Magnitude
Unit
Label
Uncertainty
Inexact numbers
Numerous gained from measurements
Exact number
an infinite number of significant digit
Accuracy
how close a measurement results comes to the true value
Precision
a measure of how close a series of measurements are to one another
Non-Zero
Any number, whether positive or negative, that does not equate to zero
What are the three types of zeros
Leading
Captive
Trailing
Conversion Factor
a ratio of the two parts of the statement that relates to the two units
Dimensional Analysis
The changing from one unit to another via conversion factor that are based on equvience factors
What is the formula for converting celsuis to Kelvin
C+273=K
the formula for converting Celsuis to Fahrenheit
F= 1.8(C) +32
