WGU C165 OA EXAM INTEGRATED PHYSICAL SCIENCES
OA ACTUAL EXAM QUESTION BANK 400 QUESTIONS
AND CORRECT DETAILED ANSWERS|ALREADY GRADED
A+
Chemistry - ANSWER: focuses on the study of atoms and molecules, their structures,
and their interactions to form various substances.
physics - ANSWER: is the study of forces and energy. The forces that are studied by
physicists govern everything from sound waves to planetary orbits.
Earth science - ANSWER: this field focuses on Earth's structure and composition, as
well as the processes that change Earth, such as volcanic and seismic activity.
Modern Earth science also includes the studies of other planets.
physical science - ANSWER: involve the study of non-living systems, as opposed to
life science (e.g., biology), which is the study of living systems.
astronomy - ANSWER: the branch of science which deals with celestial objects,
space, and the physical universe as a whole.
controlled experiment - ANSWER: Scientists perform a controlled experiment when
they want to find out how changing one thing causes something else to change.
variables - ANSWER: In an experiment changing quantities are called:
independent variable - ANSWER: It's what you change on purpose
dependent variable - ANSWER: is the one that changes because of the independent
variable
control variable - ANSWER: The variables that scientists do not wish to study need to
be either eliminated or kept constant
observational study - ANSWER: Scientific observations can be done with our own
senses (sight, hearing, smell, taste, or touch) or by using tools (telescopes, radiation
detectors, multimeters, etc.). The systems are observed as hey appear and
researchers do not attempt to change them.
laboratory experiment - ANSWER: researchers study the system of interest in a
highly controlled, artificial setting.
physical model - ANSWER: is a model that can be touched.
, conceptual model - ANSWER: can be used to visualize things that cannot be seen,
such as atoms
mathematical model - ANSWER: treat physical objects or phenomena using
mathematical methods. In these models, pertinent physical characteristics are
represented using formulas, graphs, or other mathematical means. For example, the
mathematical model below models the wavelength and amplitude of a wave.
computer model - ANSWER: are becoming increasingly important in explaining and
predicting natural phenomena, such as weather patterns and the detailed
movements of objects in the solar system
principle of falsification - ANSWER: is that only falsifiable statements can be subject
to scientific inquiry. A statement such as "a rock falls because invisible demons pull it
down" is not falsifiable, because no conceivable experiment or observation could
prove that invisible demons are not pulling it.
Hypothesis - ANSWER: is a testable statement about how something in nature works.
It is typically the best tentative assumption that researchers can make based on the
evidence they already have at that point.
Theory - ANSWER: is a statement that explains a wide range of observations and that
is supported by a large body of scientific evidence. It explains how and why things
happen
Law - ANSWER: is a concise statement that is supported by scientific evidence and
repeated experiments and describes a widespread pattern in nature. Laws are
intended to be universal.
scientific investigation - ANSWER: scientific ideas must be testable. Scientists test
their ideas with a variety of different types of investigations. Some scientists work in
laboratories, performing controlled experiments. Others may observe distant stars
and come up with theoretical models to explain their observations. Other scientists
engage in field studies.SI system-As scientific investigations became more
widespread and global, scientists recognized the need for a universal, consistent
system of measurement units. This universal system would allow scientists around
the world to easily share and compare their data.
base quantities - ANSWER: seven physical quantities are designated as base
quantities
time - ANSWER: measures how long an even lasts or the break between evens. It
also lets us order events from the past through the present and into the future. The
base unit of time is a second, abbreviated as s.
Length - ANSWER: is used to describe the distance between two objects or to
describe two ends of an object. The base unit is m
OA ACTUAL EXAM QUESTION BANK 400 QUESTIONS
AND CORRECT DETAILED ANSWERS|ALREADY GRADED
A+
Chemistry - ANSWER: focuses on the study of atoms and molecules, their structures,
and their interactions to form various substances.
physics - ANSWER: is the study of forces and energy. The forces that are studied by
physicists govern everything from sound waves to planetary orbits.
Earth science - ANSWER: this field focuses on Earth's structure and composition, as
well as the processes that change Earth, such as volcanic and seismic activity.
Modern Earth science also includes the studies of other planets.
physical science - ANSWER: involve the study of non-living systems, as opposed to
life science (e.g., biology), which is the study of living systems.
astronomy - ANSWER: the branch of science which deals with celestial objects,
space, and the physical universe as a whole.
controlled experiment - ANSWER: Scientists perform a controlled experiment when
they want to find out how changing one thing causes something else to change.
variables - ANSWER: In an experiment changing quantities are called:
independent variable - ANSWER: It's what you change on purpose
dependent variable - ANSWER: is the one that changes because of the independent
variable
control variable - ANSWER: The variables that scientists do not wish to study need to
be either eliminated or kept constant
observational study - ANSWER: Scientific observations can be done with our own
senses (sight, hearing, smell, taste, or touch) or by using tools (telescopes, radiation
detectors, multimeters, etc.). The systems are observed as hey appear and
researchers do not attempt to change them.
laboratory experiment - ANSWER: researchers study the system of interest in a
highly controlled, artificial setting.
physical model - ANSWER: is a model that can be touched.
, conceptual model - ANSWER: can be used to visualize things that cannot be seen,
such as atoms
mathematical model - ANSWER: treat physical objects or phenomena using
mathematical methods. In these models, pertinent physical characteristics are
represented using formulas, graphs, or other mathematical means. For example, the
mathematical model below models the wavelength and amplitude of a wave.
computer model - ANSWER: are becoming increasingly important in explaining and
predicting natural phenomena, such as weather patterns and the detailed
movements of objects in the solar system
principle of falsification - ANSWER: is that only falsifiable statements can be subject
to scientific inquiry. A statement such as "a rock falls because invisible demons pull it
down" is not falsifiable, because no conceivable experiment or observation could
prove that invisible demons are not pulling it.
Hypothesis - ANSWER: is a testable statement about how something in nature works.
It is typically the best tentative assumption that researchers can make based on the
evidence they already have at that point.
Theory - ANSWER: is a statement that explains a wide range of observations and that
is supported by a large body of scientific evidence. It explains how and why things
happen
Law - ANSWER: is a concise statement that is supported by scientific evidence and
repeated experiments and describes a widespread pattern in nature. Laws are
intended to be universal.
scientific investigation - ANSWER: scientific ideas must be testable. Scientists test
their ideas with a variety of different types of investigations. Some scientists work in
laboratories, performing controlled experiments. Others may observe distant stars
and come up with theoretical models to explain their observations. Other scientists
engage in field studies.SI system-As scientific investigations became more
widespread and global, scientists recognized the need for a universal, consistent
system of measurement units. This universal system would allow scientists around
the world to easily share and compare their data.
base quantities - ANSWER: seven physical quantities are designated as base
quantities
time - ANSWER: measures how long an even lasts or the break between evens. It
also lets us order events from the past through the present and into the future. The
base unit of time is a second, abbreviated as s.
Length - ANSWER: is used to describe the distance between two objects or to
describe two ends of an object. The base unit is m
