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TLHS Phy Sci #1

Sci Method & Measurement

TermDefinition
constant factor (variable) that does not (or is not) changed in an experiment
control standard by which results are compared to, often the original observation
dependent variable variable that changed because of a change in another variable
experiment tests a hypothesis by discovering the effect of one thing on another using a control
hypothesis possible explanation for a problem, uses what you know and what you have observed
independent variable variable that was changed (tested) during the experiment
Bias changes how results are analyzed or conclusions are made, based on expectations prior to the experiment
model represents an idea, event, or object to allow for better understanding and study
scientific law statement of what happens in nature and seems to be true at all times - when all the conditions are the same.
scientific method pattern of investigation prodecure
theory well tested and observed explanation of things or events
variable quantity that can have more than a single value, can be controlled, tested, or affected in an experiment
density mass per unit volume, measured in grams per liter (g/l) or grams per cubic centimeter (g/cm^3)
mass amount of matter in an object, measured in kilograms
matter anything that takes up space and has mass
SI International System of Units, the metric system
standard exact quantity that is used to compare measurements
volume amount of space contained in an object. measured in liters (l) or cubic centimeters (cm^3)
graph visual display of information or data
meter measures length
m meter
kilogram (gram) measures mass
kg, g kilogram, gram
second measures time
s second
kelvin measures temperature
k kelvin
weight the force of gravity on an objects mass
liter one measurement of volume, liquids and irregular shaped objects
l liter
cubic centimeter second measurement of volume, regular shaped objects
cm^3 cubic centimeter
Popular Physical Science sets

 

 



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