WGU C165 Integrated Physical Sciences Practice Test Questions and Answers 2023 (Verified Answers) The study of forces, energy, motion - Correct Answer Physics The study of atoms and molecules, their structures, and their interactions to form substances - Correct Answer Chemistry The study of the Earth's structure and composition, and processes that change Earth - Correct Answer Earth science Studies the natural world Uses testable ideas Relies on data from observations/experiments Presented for evaluation by other scientists Leads to further questions/research - Correct Answer essential attributes of science The changing quantities in an experiment - Correct Answer variables What you change in an experiment on purpose - Correct Answer independent variable The variable that changes because of an independent variable - Correct Answer dependent variable The variable(s) you don't want to study, need to be either eliminated or kept constant - Correct Answer control variable When systems are observed as they appear in nature, researchers do not attempt to change them - Correct Answer observational study A model of a physical phenomenon, such as a planetary system - Correct Answer physical model A model used to visualize things that cannot be seen, such as atoms - Correct Answer conceptual model A model that treats physical objects/phenomena using mathematical methods - Correct Answer mathematical model A detailed, complex model calculated by a computer - Correct Answer computer model Principle that only falsifiable statements can be subject to scientific inquiry - Correct Answer principle of falsification A testable statement about how something in nature works - Correct Answer hypothesis 1 / 2
A concise statement that is supported by scientific evidence and repeated experiments, describes a widespread pattern in nature (what) - Correct Answer law A statement that explains a wide range of observations, supported by a large body of scientific evidence (how/why) - Correct Answer theory Base unit of length - Correct Answer meter Base unit of mass - Correct Answer kilogram Base unit of time - Correct Answer second Base unit of temperature - Correct Answer kelvin What is produced when the base units/quantities are combined - Correct Answer Derived units The name for the distance traveled divided by an interval of time - Correct Answer Speed Term for the amount of space an object occupies - Correct Answer Volume Method of determining the volume of an object by measuring the amount of liquid it displaces - Correct Answer Liquid displacement A relationship between two variables where increasing one increases the other, and vice versa - Correct Answer direct relationship A relationship between two variables where increasing one decreases the other, and vice versa - Correct Answer inverse relationship A combination of speed and direction - Correct Answer Velocity Term for any change in an object's speed and/or direction - Correct Answer Acceleration Term for a push or a pull with direction and magnitude. You may not feel it. - Correct Answer Force The sum of all forces acting on an object - Correct Answer Net force Term for forces that combine to produce a net force of 0 - Correct Answer balanced forces An object in motion remains in motion unless acted on by a net force - Correct Answer Newton's first law
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