GUIDE EXAM QUESTIONS WITH CORRECT
ANSWERS NEW MODIFIED
Mathematical model --CORRECT ANSWER--These models treat
physical objects or phenomena using mathematical methods. In these
models, pertinent physical characteristics are represented using
formulas, graphs, or other mathematical means.
Computer model --CORRECT ANSWER--These models 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 --CORRECT ANSWER--This principle
states 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 --CORRECT ANSWER--Is a testable statement about
how something in nature works.
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,Law --CORRECT ANSWER--In science, this is a concise statement
that is supported by scientific evidence and repeated experiments and
describes a widespread pattern in nature. They are intended to be
universal. This scientific thing describes a pattern that is observed in
nature.
Physics --CORRECT ANSWER--The study of forces and energy.
Chemistry --CORRECT ANSWER--The study of atoms and
molecules, their structures, and their interactions to form various
substances.
Earth science --CORRECT ANSWER--Focuses on Earth's structures
and composition, as well as the processes that change Earth, such as
volcanic and seismic activity. This science also includes the studies of
other planets.
Independent variable --CORRECT ANSWER--In general, this is the
variable that is changed by the experimenter.
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, Dependent variable --CORRECT ANSWER--A variable that changes
because of the independent variable.
Physical model --CORRECT ANSWER--A smaller or larger physical
copy of an object. You can interact with it.
Conceptual model --CORRECT ANSWER--These can be used to
visualize things that cannot be seen, such as atoms.
Theory --CORRECT 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. A
scientific this is a well developed explanation that has been
thoroughly tested.
Laws compared to theories --CORRECT ANSWER--A law and a
theory are both statements that are already well supported by all
available data. A law describes something specific that happens in
nature, while a theory explains why or how it and a lot else happens.
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