WGU C165 INTEGRATED PHYSICAL SCIENCES COMPLETE SOLUTIONS GRADED A+ 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

WGU C165 INTEGRATED PHYSICAL SCIENCES COMPLETE SOLUTIONS GRADED A+ 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 The name for the distance traveled divided by an interval of time - Speed Term for the amount of space an object occupies - Volume Method of determining the volume of an object by measuring the amount of liquid it displaces - Liquid displacement A relationship between two variables where increasing one increases the other, and vice versa - direct relationship A relationship between two variables where increasing one decreases the other, and vice versa - inverse relationship A combination of speed and direction - Velocity Term for any change in an object's speed and/or direction - Acceleration Term for a push or a pull with direction and magnitude. You may not feel it. - Force The sum of all forces acting on an object - Net force Term for forces that combine to produce a net force of 0 - balanced forces An object in motion remains in motion unless acted on by a net force - Newton's first law The tenancy to keep the same motion/velocity or remain at rest. Newton's first law - inertia Net force = mass x acceleration (F = ma) - Newton's second law When one object exerts a force on a second object, the second object exerts a force of the same magnitude in the opposite direction on the first object ("For every action, an equal and opposite reaction") - Newton's third law