3 Obtain and evaluate information to compare kinetic and static friction. 2 Plan and conduct controlled scientific investigations to determine the variables that could affect the kinetic frictional force on an object. 1 Use a free-body diagram to represent the normal, tension (or elastic), applied, and frictional forces on an object. Performance Indicators: Students who demonstrate this understanding can: H. Conceptual Understanding: The contact interactions among objects and their subsequent motion can be explained and predicted by analyzing the normal, tension, applied, and frictional forces acting on the objects and by applying Newton’s Laws of Motion. PHYSICS 1 INTERACTIONS AND FORCES (CONTINUED) H.
6 Obtain information to communicate the similarities and differences between distance and displacement speed and velocity constant velocity and instantaneous velocity constant velocity and average velocity and velocity and acceleration. 5 Construct explanations for what is meant by “constant” velocity and “constant” acceleration (including writing descriptions of the object’s motion and calculating the sign and magnitude of the slope of the line on a position-time and velocity-time graph). 4 Develop and use models to represent an object’s displacement, velocity, and acceleration (including vector diagrams, data tables, motion graphs, dot motion diagrams, and mathematical formulas). Interpret the meaning of the sign of displacement, velocity, and acceleration. 3 Use mathematical and computational thinking to apply formulas related to an object’s displacement, constant velocity, average velocity and constant acceleration. 2 Construct explanations for an object’s change in motion using one-dimensional vector addition. 1 Plan and conduct controlled scientific investigations on the straight-line motion of an object to include an interpretation of the object’s displacement, time of motion, constant velocity, average velocity, and constant acceleration.
Conceptual Understanding: The linear motion of an object can be described by its displacement, velocity, and acceleration. 2: The student will demonstrate an understanding of how the interactions among objects and their subsequent motion can be explained and predicted using the concept of forces. PHYSICS 1 INTERACTIONS AND FORCES Standard H.
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