1
C165 WGU 2026 Latest Questions and
Answers (100% Expert Answers) A+
Chemistry [ Ans: ] the study of atoms and molecules, their structures and
their interactions to form substances
Physics [ Ans: ] the study of forces and energy
Earth Science [ Ans: ] Earth's structure and composition and Earth's
changes
controlled experiment [ Ans: ] An experiment in which only one variable
is manipulated at a time.
independent variable [ Ans: ] The variable being changed or controlled by
the experimenter
© 2026
dependent variable [ Ans: ] The outcome factor; the variable that may
change in response to manipulations of the independent variable.
control variable [ Ans: ] A variable that is kept constant during a
controlled experiment.
observational study [ Ans: ] observes individuals and measures variables
of interest but does not attempt to influence the responses
laboratory experiment [ Ans: ] Experiment in which conditions are highly
controlled in an artificial environment
Physical Model [ Ans: ] A physical representation of an object. Prototypes
and appearance models are physical models.
conceptual model [ Ans: ] a verbal or graphical explanation for how a
system works or is organized
,2
mathematical model [ Ans: ] one or more equations that represent the
way a system or process works (formulas)
computer model [ Ans: ] detailed computer programs that solve a set of
complex mathematical formulas
principle of falsification [ Ans: ] a scientific theory must lead to testable
hypotheses that can be disproved if they are wrong
Hypothesis [ Ans: ] A testable prediction, often implied by a theory
Theory [ Ans: ] a statement that attempts to explain why things are the
way they are and happen the way they do. supported by scientific
evidence
Law [ Ans: ] Statement supported by scientific evidence and repeated
experiments
scientific investigation [ Ans: ] plan for asking questions and testing
© 2026
possible answers
derived quantities [ Ans: ] Speed - m/s
area- m2
volume- m3
density- kg/m3
SI system [ Ans: ] International System of units based on the metric
system and units derived from the metric system
meters [ Ans: ] (m) base unit for length
Second [ Ans: ] (s) SI base unit for time
Kelvin [ Ans: ] SI unit for temperature
, 3
mega [ Ans: ] M
10^6
1,000,000
kilo [ Ans: ] 1000
deci [ Ans: ] 10^-1 (0.1)
centi [ Ans: ] 10^-2 (0.01)
milli [ Ans: ] 10^-3 (0.001)
micro [ Ans: ] 10^-6 (0.000001)
nano [ Ans: ] 10^-9 (0.000000001)
© 2026
derived unit [ Ans: ] A unit defined by a combination of base units
direct relationship [ Ans: ] a relationship in which one variable increases
with an increase in another variable (distance traveled by a car and
gasoline used)
inverse relationship [ Ans: ] a relationship in which one variable
decreases when another variable increases. (Greater the speed, less time
it takes)
Speed [ Ans: ] how fast an object is moving. (m/s) (mph) (km/s)
velosity [ Ans: ] the speed of something in a given direction.
Acceleration [ Ans: ] the rate at which velocity changes over time; an
object accelerates if its speed, direction, or both change
Force [ Ans: ] A push or a pull
C165 WGU 2026 Latest Questions and
Answers (100% Expert Answers) A+
Chemistry [ Ans: ] the study of atoms and molecules, their structures and
their interactions to form substances
Physics [ Ans: ] the study of forces and energy
Earth Science [ Ans: ] Earth's structure and composition and Earth's
changes
controlled experiment [ Ans: ] An experiment in which only one variable
is manipulated at a time.
independent variable [ Ans: ] The variable being changed or controlled by
the experimenter
© 2026
dependent variable [ Ans: ] The outcome factor; the variable that may
change in response to manipulations of the independent variable.
control variable [ Ans: ] A variable that is kept constant during a
controlled experiment.
observational study [ Ans: ] observes individuals and measures variables
of interest but does not attempt to influence the responses
laboratory experiment [ Ans: ] Experiment in which conditions are highly
controlled in an artificial environment
Physical Model [ Ans: ] A physical representation of an object. Prototypes
and appearance models are physical models.
conceptual model [ Ans: ] a verbal or graphical explanation for how a
system works or is organized
,2
mathematical model [ Ans: ] one or more equations that represent the
way a system or process works (formulas)
computer model [ Ans: ] detailed computer programs that solve a set of
complex mathematical formulas
principle of falsification [ Ans: ] a scientific theory must lead to testable
hypotheses that can be disproved if they are wrong
Hypothesis [ Ans: ] A testable prediction, often implied by a theory
Theory [ Ans: ] a statement that attempts to explain why things are the
way they are and happen the way they do. supported by scientific
evidence
Law [ Ans: ] Statement supported by scientific evidence and repeated
experiments
scientific investigation [ Ans: ] plan for asking questions and testing
© 2026
possible answers
derived quantities [ Ans: ] Speed - m/s
area- m2
volume- m3
density- kg/m3
SI system [ Ans: ] International System of units based on the metric
system and units derived from the metric system
meters [ Ans: ] (m) base unit for length
Second [ Ans: ] (s) SI base unit for time
Kelvin [ Ans: ] SI unit for temperature
, 3
mega [ Ans: ] M
10^6
1,000,000
kilo [ Ans: ] 1000
deci [ Ans: ] 10^-1 (0.1)
centi [ Ans: ] 10^-2 (0.01)
milli [ Ans: ] 10^-3 (0.001)
micro [ Ans: ] 10^-6 (0.000001)
nano [ Ans: ] 10^-9 (0.000000001)
© 2026
derived unit [ Ans: ] A unit defined by a combination of base units
direct relationship [ Ans: ] a relationship in which one variable increases
with an increase in another variable (distance traveled by a car and
gasoline used)
inverse relationship [ Ans: ] a relationship in which one variable
decreases when another variable increases. (Greater the speed, less time
it takes)
Speed [ Ans: ] how fast an object is moving. (m/s) (mph) (km/s)
velosity [ Ans: ] the speed of something in a given direction.
Acceleration [ Ans: ] the rate at which velocity changes over time; an
object accelerates if its speed, direction, or both change
Force [ Ans: ] A push or a pull
