WGU C165 OA EXAM INTEGRATED
PHYSICAL SCIENCES OA 2024-2025
ACTUAL EXAM QUESTION BANK 250
QUESTIONS AND CORRECT DETAILED
ANSWERS| COMPLETE SOLUTIONS
Chemistry: - The study of atoms and molecules, their structures, and their interactions to form
various substances.
Physics: - The study of forces, energy and motion.
Earth Science: - This field focuses on Earth's structure and composition, as well as the processes
that change Earth, such as volcanic and seismic activity.
Physical Science: - The scientific study of nonliving matter. Ex: chemistry, physics, and Earth science.
Astronomy: - The study of the moon, stars, and other objects in space.
Controlled Experiment: - An experiment in which only one variable is manipulated at a time..
Independent Variable: - The variable that is manipulated in an experiment.
Dependent Variable: - The outcome factor; the variable that may change in response to
manipulations of the independent variable.
Control Variable: - A variable that is kept constant during a controlled experiment.
,Observational Study: - The systems are observed as they appear in nature and researchers do not
attempt to change them.
Laboratory Experiment: - Researchers study the system of interest in a highly controlled artificial
setting (lab).
Physical Model: - A physical representation of an object. Ex: Scaled down version of the solar
system.
Conceptual Model: - A verbal or graphical explanation for how a system works or is organized. Ex:
posters, charts.
Mathematical Model: - Uses different forms of data to represent the way a system or process works.
Ex: formulas, graphs, mathematical means. Ex: F=ma (formula).
Computer Model: - A computer program that models an event or object. Important in explaining
and predicting natural phenomena. Ex: weather patterns, solar system.
Principle of Falsification: - Principle that only falsifiable statements can be subject to scientific
inquiry.
Hypothesis: - A testable prediction, often implied by a theory.
Theory: - A hypothesis that has been tested with a significant amount of data.
Law: - A concise statement that is supported by scientific evidence and repeated experiments.
Describes a widespread pattern in nature. Intended to be universal.
Scientific Investigation: - Scientists test their ideas with a variety of different types of investigations.
Ex: laboratories, controlled experiments, astronomy, field studies, models.
SI System: - International System of units based on the metric system and units derived from the
metric system.
, Base Quantities: - Seven designated physical quantities (sets) from which all other SI quantities can
be derived.
(1) Meter (m)-length
(2) Kilogram (k)-mass
(3) Second (s)-time
(4) Kelvin (K)-temperature
(5) Amperes (A)-"amp"-electric current
(6) Candela (cd)-light intensity
(7) Moles (mol)-amount of substance
Time: - Base quantity that measures how long an event lasts or the break between events.
Length: - Used to describe the distance between two objects, or the two ends of an object.
Mass: - Used to describe the amount of matter in an object.
Temperature: - A measure of how hot or cold something is.
Gram: - a metric unit of mass equal to one thousandth of a kilogram.
Meter: - The base unit of length in the metric system. Unit symbol (m).
Liter: - Basic unit of volume in the metric system. Unit symbol (l).
Second: - SI base unit for time. Unit symbol (s).
Kelvin: - Si base unit of temperature. Unit symbol (K).
Mega: - Metric prefix one million of the base unit. 10^6 Unit symbol (M).
PHYSICAL SCIENCES OA 2024-2025
ACTUAL EXAM QUESTION BANK 250
QUESTIONS AND CORRECT DETAILED
ANSWERS| COMPLETE SOLUTIONS
Chemistry: - The study of atoms and molecules, their structures, and their interactions to form
various substances.
Physics: - The study of forces, energy and motion.
Earth Science: - This field focuses on Earth's structure and composition, as well as the processes
that change Earth, such as volcanic and seismic activity.
Physical Science: - The scientific study of nonliving matter. Ex: chemistry, physics, and Earth science.
Astronomy: - The study of the moon, stars, and other objects in space.
Controlled Experiment: - An experiment in which only one variable is manipulated at a time..
Independent Variable: - The variable that is manipulated in an experiment.
Dependent Variable: - The outcome factor; the variable that may change in response to
manipulations of the independent variable.
Control Variable: - A variable that is kept constant during a controlled experiment.
,Observational Study: - The systems are observed as they appear in nature and researchers do not
attempt to change them.
Laboratory Experiment: - Researchers study the system of interest in a highly controlled artificial
setting (lab).
Physical Model: - A physical representation of an object. Ex: Scaled down version of the solar
system.
Conceptual Model: - A verbal or graphical explanation for how a system works or is organized. Ex:
posters, charts.
Mathematical Model: - Uses different forms of data to represent the way a system or process works.
Ex: formulas, graphs, mathematical means. Ex: F=ma (formula).
Computer Model: - A computer program that models an event or object. Important in explaining
and predicting natural phenomena. Ex: weather patterns, solar system.
Principle of Falsification: - Principle that only falsifiable statements can be subject to scientific
inquiry.
Hypothesis: - A testable prediction, often implied by a theory.
Theory: - A hypothesis that has been tested with a significant amount of data.
Law: - A concise statement that is supported by scientific evidence and repeated experiments.
Describes a widespread pattern in nature. Intended to be universal.
Scientific Investigation: - Scientists test their ideas with a variety of different types of investigations.
Ex: laboratories, controlled experiments, astronomy, field studies, models.
SI System: - International System of units based on the metric system and units derived from the
metric system.
, Base Quantities: - Seven designated physical quantities (sets) from which all other SI quantities can
be derived.
(1) Meter (m)-length
(2) Kilogram (k)-mass
(3) Second (s)-time
(4) Kelvin (K)-temperature
(5) Amperes (A)-"amp"-electric current
(6) Candela (cd)-light intensity
(7) Moles (mol)-amount of substance
Time: - Base quantity that measures how long an event lasts or the break between events.
Length: - Used to describe the distance between two objects, or the two ends of an object.
Mass: - Used to describe the amount of matter in an object.
Temperature: - A measure of how hot or cold something is.
Gram: - a metric unit of mass equal to one thousandth of a kilogram.
Meter: - The base unit of length in the metric system. Unit symbol (m).
Liter: - Basic unit of volume in the metric system. Unit symbol (l).
Second: - SI base unit for time. Unit symbol (s).
Kelvin: - Si base unit of temperature. Unit symbol (K).
Mega: - Metric prefix one million of the base unit. 10^6 Unit symbol (M).
