Solutions
Physics - -The study of forces, energy, are observed as they appear in nature,
motion researchers do not attempt to change them
Chemistry - -The study of atoms and physical model - -A model of a physical
molecules, their structures, and their phenomenon, such as a planetary system
interactions to form substances
conceptual model - -A model used to
Earth science - -The study of the visualize things that cannot be seen, such as
Earth's structure and composition, and atoms
processes that change Earth
mathematical model - -A model that
essential attributes of science - - treats physical objects/phenomena using
Studies the natural world mathematical methods
Uses testable ideas
Relies on data from
observations/experiments computer model - -A detailed, complex
Presented for evaluation by other scientists model calculated by a computer
Leads to further questions/research
principle of falsification - -Principle that
variables - -The changing quantities in only falsifiable statements can be subject to
an experiment scientific inquiry
independent variable - -What you hypothesis - -A testable statement
change in an experiment on purpose about how something in nature works
dependent variable - -The variable that law - -A concise statement that is
changes because of an independent variable supported by scientific evidence and
repeated experiments, describes a
widespread pattern in nature (what)
control variable - -The variable(s) you
don't want to study, need to be either
eliminated or kept constant theory - -A statement that explains a
wide range of observations, supported by a
large body of scientific evidence (how/why)
observational study - -When systems
, WGU C165 Integrated Physical Sciences with Complete
Solutions
direction
meter - -Base unit of length
Acceleration - -Term for any change in
kilogram - -Base unit of mass an object's speed and/or direction
second - -Base unit of time Force - -Term for a push or a pull with
direction and magnitude. You may not feel it.
kelvin - -Base unit of temperature
Net force - -The sum of all forces acting
on an object
Derived units - -What is produced
when the base units/quantities are combined
balanced forces - -Term for forces that
combine to produce a net force of 0
Speed - -The name for the distance
traveled divided by an interval of time
Newton's first law - -An object in
motion remains in motion unless acted on by
Volume - -Term for the amount of a net force
space an object occupies
inertia - -The tenancy to keep the same
Liquid displacement - -Method of motion/velocity or remain at rest. Newton's
determining the volume of an object by first law
measuring the amount of liquid it displaces
Newton's second law - -Net force =
direct relationship - -A relationship mass x acceleration (F = ma)
between two variables where increasing one
increases the other, and vice versa
Newton's third law - -When one object
exerts a force on a second object, the second
inverse relationship - -A relationship object exerts a force of the same magnitude
between two variables where increasing one in the opposite direction on the first object
decreases the other, and vice versa ("For every action, an equal and opposite
reaction")
Velocity - -A combination of speed and