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34 terms

measurements and scientific method unit 1.

mrs.griffin... first unit
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matter
Anything that occupies space and has mass
gravity
A force of attraction of the earth for a given object, or of one mass to another
weight
A measure of the force of gravity acting on an object
spring scale
The tool used to measure force
Newton (N)
The basic metric unit of measure of force
mass
A measure of the amount of matter in an object
balance
The tool used to measure mass
kilogram (kg)
The basic metric unit of measure of mass
length
The measure of the distance from one point to another
meter stick
A tool used to measure length
meter (m)
The basic metric unit of measure for length
volume
A measure of the amount of space occupied by an object
graduate
A tool used to measure volume
liter (L)
The basic metric unit of measure of volume
meniscus
The curved surface found at the top of a contained liquid
energy
The ability to do work or cause change
kinetic energy
Energy of motion
potential energy
Energy an object has due to position or state
Law of Conservation of Energy
Energy cannot be created or destroyed, but can change from one form to another
scientific method
A process used for gathering evidence that leads to understanding
observation
An examination of something using your senses
hypothesis
A possible answer to a problem and a statement that can be tested
experiment
A controlled procedure designed to test a hypothesis with measurable results
data
Carefully documented results of an experiment used to draw a conclusion
conclusion
A statement that proves if the data supports the hypothesis
control group
The group in which all variables remain the same
experimental group
The group in which one variable has been changed
infer
The process of drawing conclusions based on experience and prior knowledge
variables
All factors that can influence the outcome of an experiment
independent variable
The variable that is deliberately changed by the experimenter; the manipulated variable (x-axis)
dependent variable
The variable being measured and observed; the responding variable (y-axis)
constant variables
The variables that remain the same throughout The variables that remain the same throughout the experiment; constants or controlled variables
inversely proportional
A relationship where two variables change by the same factor in opposite directions
directly proportional
A relationship where two variables change by the same factor in the same direction