WGU C165 Integrated Physical Sciences II with complete solutions

The study of forces, energy, motion Physics The study of atoms and molecules, their structures, and their interactions to form substances Chemistry The study of the Earth's structure and composition, and processes that change Earth 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 essential attributes of science The changing quantities in an experiment variables What you change in an experiment on purpose independent variable The variable that changes because of an independent variable dependent variable The variable(s) you don't want to study, need to be either eliminated or kept constant control variable When systems are observed as they appear in nature, researchers do not attempt to change them observational study A model of a physical phenomenon, such as a planetary system physical model A model used to visualize things that cannot be seen, such as atoms conceptual model A model that treats physical objects/phenomena using mathematical methods mathematical model A detailed, complex model calculated by a computer computer model Principle that only falsifiable statements can be subject to scientific inquiry principle of falsification A testable statement about how something in nature works hypothesis A concise statement that is supported by scientific evidence and repeated experiments, describes a widespread pattern in nature (what) law A statement that explains a wide range of observations, supported by a large body of scientific evidence (how/why) theory Base unit of length meter Base unit of mass kilogram Base unit of time second Base unit of temperature kelvin What is produced when the base units/quantities are combined Derived units