INTEGRATED PHYSICAL SCIENCE C165
WGU QUESTIONS WITH DETAILED
VERIFIED ANSWERS
physics Ans: the study of forces, energy, motion
Chemistry Ans: study of atoms and molecules, their structures, and
their interactions to form various substances.
Earth Science Ans: Earth's structure and composition, as well as the
processes that change Earth, such as volcanic and seismic activity.
astronomy Ans: The study of the moon, stars, and other objects in
space
Science Ans: An organized way of gathering and analyzing evidence
about the natural world.
Precision Ans: a measure of how close a series of measurements are to
one another
SI Ans: is a scientific method of expressing the magnitudes or quantities
of important natural phenomena. There are seven base units in the
system, from which other units are derived. Universal for comparing
data.
physical science Ans: the sciences concerned with the study of
inanimate natural objects, including physics, chemistry, astronomy, and
related subjects.
life science Ans: the study of living things
controlled experiment Ans: An experiment in which only one variable is
manipulated at a time. Or a condition that is being held constant
independent variable Ans: what is being changed
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dependent variable Ans: what is being measured
control Ans: In an experiment, the standard that is used for comparison
Observational experiment or study Ans: studies attempt to understand
cause-and-effect relationships. However, unlike experiments, the
researcher is not able to control (1) how subjects are assigned to groups
and/or (2) which treatments each group receives. ... Therefore, a sample
survey is an example of an observational study.
field study Ans: a research investigation carried out in a naturally
occurring setting
laboratory study Ans: Research done in a laboratory
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
mathematical model Ans: one or more equations that represent the way
a system or process works
Hypothesis Ans: A testable prediction, often implied by a theory
Theory Ans: A hypothesis that has been tested with a significant amount
of data. Explains why something happened.
Law Ans: A law in science is a generalized rule to explain a body of
observations in the form of a verbal or mathematical statement. Scientific
laws (also known as natural laws) imply a cause and effect between the
observed elements and must always apply under the same conditions.
Explains how it happened not why.
Observation Ans: Information obtained through the senses.
evidence Ans: proof
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Data Ans: Facts and statistics collected together for reference or
analysis
Big Bang Theory Ans: Cosmological model that explains the sudden
development of the universe through expansion from a hot, dense state.
plate tectonics Ans: A theory stating that the earth's surface is broken
into plates that move.
atomic theory Ans: a theory that states that all matter is composed of
tiny particles called atoms.
gram Ans: a metric unit of mass equal to one thousandth of a kilogram.
meter Ans: The meter is the basic unit of length in the SI system of
units. ... The previous definition of the meter was one ten-millionth of the
distance from the geographic north pole to the equator, measured over
the earth's surface in a circle running through Paris, France.
second Ans: SI base unit for time
Celsius Ans: Metric unit for measuring temperature; On this scale water
freezes at zero and boils at 100.
Kelvin Ans: The SI base unit of temperature
liter Ans: Basic unit of volume in the metric system
Metric Prefixes Ans: Giga, Mega, Kilo, deci, centi, milli, micro, nano
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
inverse relationship Ans: a relationship in which one variable decreases
when another variable increases
Speed Ans: The distance an object travels per unit of time