Big Idea: How and Why Things Move
Skill Descriptor: Select an appropriate frame of reference for describing motion.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Set a reference point and establish positive and negative directions for measurements and descriptions of motion
- Describe apparent motion of an object as viewed by varied frames of reference
Skill Descriptor: Represent position, velocity, and acceleration using vectors.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Describe properties of scalar and vector quantities
- Describe motion of an object qualitatively in terms of its position, velocity, and acceleration
- Interpret significance of a positive or negative value as an indication of a vector’s direction
- Represent displacement, velocity, and acceleration as vectors on diagrams
Skill Descriptor: Analyze graphically the relationship among displacement, velocity, and time for uniform motion.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Collect and represent data about uniform motion on a position-time graph
- Create a velocity-time graph from position-time information
- Evaluate the area under a velocity time graph to determine displacement
Skill Descriptor: Analyze algebraically the relationship among displacement, velocity, and time for uniform motion.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Derive equations for uniform motion using position-time and velocity-time graphs
- Solve problems using the equation for uniform motion, given two of the three variables
Skill Descriptor: Analyze graphically the relationship among displacement, velocity, acceleration, and time for uniformly accelerated motion.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Collect and represent data on a position-time graph
- Create a velocity-time graph from position-time information and compare trends
- Evaluate the slope of line segments on a velocity-time graph to determine acceleration
- Evaluate the area under a velocity time graph to determine displacement
Skill Descriptor: Analyze algebraically the relationship among displacement, velocity, acceleration and time for accelerated motion.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Select and justify appropriate kinematics equations for various situations
- Solve problems using kinematics equations for accelerated motion
Skill Descriptor: Determine an approximate value of the local acceleration of gravity using technology.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Collect and display position-time and velocity-time data
- Interpret the acceleration data
Skill Descriptor: Represent forces using vectors.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Distinguish between mass and weight
- Design free-body diagrams, including combinations of the force of gravity (weight), normal force, frictional force, applied force, tension
Skill Descriptor: Analyze forces acting on objects experiencing uniform motion.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Explain examples of Newton’s first law in action
- Illustrate that uniform motion happens when forces are balanced (stationary or constant velocity)
- Solve problems using Newton’s first law of motion
Skill Descriptor: Analyze forces acting on individual objects experiencing accelerated motion
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Explain examples of Newton’s second law in action
- Illustrate that accelerated motion happens when forces are unbalanced
- Derive equations for net force using free-body diagrams
- Solve problems using Newton’s second law of motion
Skill Descriptor: Analyze forces when multiple objects interact.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Explain examples of Newton’s third law in action
- Illustrate that all forces exist in equal and opposite pairs
- Solve problems using Newton’s third law of motion
Skill Descriptor: Solve problems that connect kinematics and dynamics concepts.
Global Competencies: CM, CTPS, SASM
Achievement Indicators:
- Calculate forces acting on accelerating objects, given kinematics information
- Calculate kinematics values for accelerating objects, given dynamics information