Unit 4 — Potential & Kinetic Energy
Description
This unit focuses on understanding kinetic and potential energy as forms of motion energy and stored energy. Students learn that kinetic energy depends on both mass and speed of an object, while potential energy depends on mass and height. The unit emphasizes the relationship between these two energy forms and how energy is conserved within a system, with students constructing graphical displays and developing models to explain energy transfers.
Essential Questions
- What is the difference between kinetic and potential energy?
- What does kinetic energy depend upon?
- What does potential energy depend upon?
Learning Objectives
- Construct and interpret graphical displays of data to describe the relationships of kinetic energy to mass and speed of an object.
- Develop a model to describe how potential energy is stored when the arrangement of objects at a distance changes.
- Construct, use, and present arguments to support the claim that energy is transferred to or from an object when its kinetic energy changes.
- Describe the relationship of mass and speed to kinetic energy.
- Compare and contrast potential and kinetic energy.
- Explain what factors can change the amount of potential energy in an object.
- Determine the greatest and lowest gravitational potential energy in a diagram.
Supplemental Resources
- Chart paper for displaying graphical data and energy relationships
- Markers and colored pencils for constructing visual models and diagrams
- Graphic organizers for comparing and contrasting potential and kinetic energy
- Index cards for recording key facts about factors that affect kinetic and potential energy
- Printed diagrams and images for identifying gravitational potential energy values
No core standards aligned for this unit.
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Formative Assessments
- Graphical displays of kinetic energy data showing relationships between mass, speed, and motion energy
- Model development activities describing potential energy storage based on object arrangement and position
- Class discussions and arguments supporting energy transfer claims when kinetic energy changes
- Comparisons and contrasts between potential and kinetic energy in written or visual form
- Identification of greatest and lowest gravitational potential energy values in provided diagrams
Summative Assessment
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Benchmark Assessment
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Alternative Assessment
Students may demonstrate understanding through a teacher-led discussion or verbal explanation of kinetic and potential energy relationships, supported by manipulatives or physical demonstrations. Visual aids such as labeled diagrams, energy flow charts, or simplified data tables may be provided to scaffold responses.
IEP (Individualized Education Program)
Students may benefit from graphic organizers that visually separate kinetic and potential energy concepts, helping them organize relationships between variables such as mass, speed, and height. When constructing graphical displays or developing energy models, allow students to demonstrate understanding through oral explanation, labeled diagrams, or teacher-scribed responses rather than extended written output. Directions for multi-step tasks, such as building or interpreting energy models, should be chunked and numbered, with key vocabulary like 'kinetic,' 'potential,' and 'energy transfer' provided on a reference card throughout the unit. Frequent check-ins during data analysis and argument-construction tasks will help identify misconceptions early and provide timely feedback.
Section 504
Students should be given extended time when completing graphical displays of kinetic energy data or written comparisons of energy types, as these tasks require sustained focus and precision. Preferential seating near instructional demonstrations and reduced-distraction environments will support access during model development and class discussion activities. Providing a print copy of any data, diagrams, or energy scenarios displayed on the board ensures students can reference materials at their own pace without losing instructional momentum.
ELL / MLL
Visual supports such as labeled diagrams, energy transformation illustrations, and anchor charts connecting vocabulary to images will help students access the core concepts of kinetic and potential energy throughout the unit. Key terms including 'mass,' 'speed,' 'height,' 'stored energy,' and 'motion energy' should be introduced with visual and contextual examples before content instruction begins, and a bilingual or picture-supported word bank can serve as an ongoing reference. Directions for tasks involving graphing or model construction should be simplified and delivered in short steps, and students should be encouraged to demonstrate understanding of energy relationships through drawings or labeled models when language barriers limit written expression.
At Risk (RTI)
Connecting the concepts of kinetic and potential energy to familiar, real-world contexts — such as a ball rolling down a hill or a stretched rubber band — will help students build meaningful entry points into the unit before more abstract relationships are introduced. Graphing and modeling tasks can be scaffolded by providing partially completed templates that allow students to focus on understanding energy relationships rather than the mechanics of constructing displays from scratch. Breaking the comparison of potential and kinetic energy into a structured visual format, such as a side-by-side organizer, can reduce cognitive load while still targeting key conceptual understanding.
Gifted & Talented
Students who demonstrate early mastery of the kinetic and potential energy relationships can be challenged to investigate real-world systems — such as roller coaster design or pendulum motion — where energy conservation and transformation interact with friction and other variables not fully accounted for in idealized models. Extending into quantitative reasoning, students can explore how changes in multiple variables simultaneously affect total mechanical energy within a system, moving beyond single-variable analysis. Encouraging students to critique the limitations of the models they construct, and to propose refined or alternative representations, develops the kind of evaluative scientific thinking appropriate for this level of depth.