WGU C165 INTEGRATED PHYSICAL SCIENCES OA AND
PRE ASSESSMENT EXAM 2024 ACTUAL EXAM
COMPLETE 450 QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
physics - ANSWER: the study of forces and energy
chemistry - ANSWER: the study of atoms and molecules, their structures, and their
interactions to form various substances
Earth science - ANSWER: the study of the Earth's structure and composition as well
as processes that change Earth (volcanic and seismic activity)
astronomy - ANSWER: the study of celestial objects and phenomena
science - ANSWER: a collection of knowledge and a process of discovering how
various parts of the universe interact with each other
scientific inquiry - ANSWER: the diverse ways in which scientists study the natural
world and propose explanations based on evidence they gather
physical sciences - ANSWER: the study of non-living systems
life sciences - ANSWER: the study of living systems
controlled experiment - ANSWER: an experiment in which only one variable is
manipulated at a time
variables - ANSWER: the changing quantities in an experiment
independent variable - ANSWER: the variable that is being changed by the
experimenter
dependent variable - ANSWER: the variable that changes as a result of the
manipulated variable in an experiment
control variable - ANSWER: the variable that scientists do not wish to study; must be
kept constant or eliminated
observational study - ANSWER: experiment in which systems are observed as they
appear in nature, and researchers do not attempt to change them
field study - ANSWER: observational studies done outside a laboratory setting
,laboratory study - ANSWER: studies of the system of interest in a highly controlled
and artificial setting
scientific model - ANSWER: a representation of a particular phenomenon in the
world using something else to understand it, making it easier to understnad
physical model - ANSWER: a physical copy of an object or system; can be smaller,
larger, or the same size
conceptual model - ANSWER: used to visualize things that cannot be seen
mathematical model - ANSWER: used to treat physical objects or phenomena using
mathematical methods
computer model - ANSWER: used to explain and predict natural phenomena;
extremely detailed and complex
principle of falsification - ANSWER: concept that only falsifiable statements can be
subject to scientific inquiry
hypothesis - ANSWER: a testable statement about how something in nature works
scientific law - ANSWER: a concise statement that is supported by scientific evidence
and repeated experiments; describes a widespread pattern in nature
scientific theory - ANSWER: a statement that explains a wide range of observations
and is supported by a large body of scientific evidence; explains how and why things
happen
big bang theory - ANSWER: theory that describes how the universe developed,
starting from about 0.01 seconds after it began
plate tectonics - ANSWER: theory that states that Earth's outermost layer is broken
up into may large pieces
atomic theory - ANSWER: theory that states that matter is composed of atoms and
elements are composed of only one kind of atom
meter (m) - ANSWER: the base unit for length
kilogram (kg) - ANSWER: the base unit for mass
second (s) - ANSWER: the base unit for time
kelvin (K) - ANSWER: the base unit for temperature
SI - ANSWER: the universal measurement system used by scientists worlwide
, metric prefix - ANSWER: written before a base unit to specify a fraction or multiple of
the base unit
mega (M) - ANSWER: prefix with the multiplier of 1,000,000
kilo (k) - ANSWER: prefix with the multiplier of 1,000
deci (d) - ANSWER: prefix with the multiplier of 0.1
centi (c) - ANSWER: prefix with the multiplier of 0.01
milli (m) - ANSWER: prefix with the multiplier of 0.001
micro (μ) - ANSWER: prefix with the multiplier of 0.000001
nano (n) - ANSWER: prefix with the multiplier of 0.000000001
derived units - ANSWER: the product of the combination of base quanntities
speed - ANSWER: the distance traveled per time interval; describes how fast an
object is moving
area - ANSWER: the measurement of a surface
volume - ANSWER: the amount of space an object occupies
density - ANSWER: the measurement of mass per unit of volume
direct relationship - ANSWER: describes the relationship that exists between two
variables when an increase in one results in the increase of the other and the
decrease of one results in the decrease of the other
inverse relationship - ANSWER: describes the relationship that exists between two
variables when an increase in one results in the decrease of the other and the
decrease of one results in the increase of the other
velocity - ANSWER: describes an object's speed and direction
acceleration - ANSWER: describes a change in an object's speed and/or direction
force - ANSWER: a push or a pull
balanced forces - ANSWER: forces that combine to produce a net force of zero and
do not cause acceleration; equal in magnitude but opposite in direction
unequal forces - ANSWER: forces combine to produce a net force different from zero
PRE ASSESSMENT EXAM 2024 ACTUAL EXAM
COMPLETE 450 QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
physics - ANSWER: the study of forces and energy
chemistry - ANSWER: the study of atoms and molecules, their structures, and their
interactions to form various substances
Earth science - ANSWER: the study of the Earth's structure and composition as well
as processes that change Earth (volcanic and seismic activity)
astronomy - ANSWER: the study of celestial objects and phenomena
science - ANSWER: a collection of knowledge and a process of discovering how
various parts of the universe interact with each other
scientific inquiry - ANSWER: the diverse ways in which scientists study the natural
world and propose explanations based on evidence they gather
physical sciences - ANSWER: the study of non-living systems
life sciences - ANSWER: the study of living systems
controlled experiment - ANSWER: an experiment in which only one variable is
manipulated at a time
variables - ANSWER: the changing quantities in an experiment
independent variable - ANSWER: the variable that is being changed by the
experimenter
dependent variable - ANSWER: the variable that changes as a result of the
manipulated variable in an experiment
control variable - ANSWER: the variable that scientists do not wish to study; must be
kept constant or eliminated
observational study - ANSWER: experiment in which systems are observed as they
appear in nature, and researchers do not attempt to change them
field study - ANSWER: observational studies done outside a laboratory setting
,laboratory study - ANSWER: studies of the system of interest in a highly controlled
and artificial setting
scientific model - ANSWER: a representation of a particular phenomenon in the
world using something else to understand it, making it easier to understnad
physical model - ANSWER: a physical copy of an object or system; can be smaller,
larger, or the same size
conceptual model - ANSWER: used to visualize things that cannot be seen
mathematical model - ANSWER: used to treat physical objects or phenomena using
mathematical methods
computer model - ANSWER: used to explain and predict natural phenomena;
extremely detailed and complex
principle of falsification - ANSWER: concept that only falsifiable statements can be
subject to scientific inquiry
hypothesis - ANSWER: a testable statement about how something in nature works
scientific law - ANSWER: a concise statement that is supported by scientific evidence
and repeated experiments; describes a widespread pattern in nature
scientific theory - ANSWER: a statement that explains a wide range of observations
and is supported by a large body of scientific evidence; explains how and why things
happen
big bang theory - ANSWER: theory that describes how the universe developed,
starting from about 0.01 seconds after it began
plate tectonics - ANSWER: theory that states that Earth's outermost layer is broken
up into may large pieces
atomic theory - ANSWER: theory that states that matter is composed of atoms and
elements are composed of only one kind of atom
meter (m) - ANSWER: the base unit for length
kilogram (kg) - ANSWER: the base unit for mass
second (s) - ANSWER: the base unit for time
kelvin (K) - ANSWER: the base unit for temperature
SI - ANSWER: the universal measurement system used by scientists worlwide
, metric prefix - ANSWER: written before a base unit to specify a fraction or multiple of
the base unit
mega (M) - ANSWER: prefix with the multiplier of 1,000,000
kilo (k) - ANSWER: prefix with the multiplier of 1,000
deci (d) - ANSWER: prefix with the multiplier of 0.1
centi (c) - ANSWER: prefix with the multiplier of 0.01
milli (m) - ANSWER: prefix with the multiplier of 0.001
micro (μ) - ANSWER: prefix with the multiplier of 0.000001
nano (n) - ANSWER: prefix with the multiplier of 0.000000001
derived units - ANSWER: the product of the combination of base quanntities
speed - ANSWER: the distance traveled per time interval; describes how fast an
object is moving
area - ANSWER: the measurement of a surface
volume - ANSWER: the amount of space an object occupies
density - ANSWER: the measurement of mass per unit of volume
direct relationship - ANSWER: describes the relationship that exists between two
variables when an increase in one results in the increase of the other and the
decrease of one results in the decrease of the other
inverse relationship - ANSWER: describes the relationship that exists between two
variables when an increase in one results in the decrease of the other and the
decrease of one results in the increase of the other
velocity - ANSWER: describes an object's speed and direction
acceleration - ANSWER: describes a change in an object's speed and/or direction
force - ANSWER: a push or a pull
balanced forces - ANSWER: forces that combine to produce a net force of zero and
do not cause acceleration; equal in magnitude but opposite in direction
unequal forces - ANSWER: forces combine to produce a net force different from zero
