Unit 5 — Design Ramps - Overcoming Gravity and Friction
Description
Students design and build ramps to move objects at different speeds using various materials and angles. They conduct experiments with matchbox cars and balls, testing how friction and incline affect motion. Students collect data, graph results, and analyze which combinations produce desired speeds. This unit emphasizes measurement, data collection, and mathematical analysis.
Essential Questions
- How do friction and gravity affect motion?
- How can I design a ramp to achieve a specific speed?
- What materials and angles work best for different purposes?
Learning Objectives
- Understand the relationship between friction, gravity, and motion
- Design ramps using different materials and angles
- Measure distances and times accurately
- Graph and analyze data to identify patterns
- Predict outcomes based on previous test results
- Iterate designs based on data analysis
Supplemental Resources
- Clipboards for recording data during testing
- Graph paper for charting results
- Plastic page protectors for protecting data sheets during testing
Physical Sciences
Data and Analysis
Engineering Design
Digital Literacy
Measurement
Operations and Algebraic Thinking
Students write in science notebooks, create digital stories about plants and animals, and communicate findings through word processing documents and presentations. Students read and interpret informational texts about engineering design and natural systems.
Students measure and record data, create bar graphs and pictographs, calculate area and perimeter, apply multiplication and division to solve engineering problems, and analyze patterns in test results. Students use measurement tools and represent data visually.
Formative Assessments
- Observation of ramp building and material selection
- Timing and distance measurements during testing
- Graphing of speed data from multiple trials
- Class discussion of which variables affected motion most
Summative Assessment
Completed ramp design with data tables and graphs showing test results; written analysis of which materials and angles were most effective
Benchmark Assessment
— not configured —
Alternative Assessment
Students may demonstrate understanding through a teacher-led discussion about their ramp design choices and results, supported by visual aids such as labeled diagrams or photos of their ramps. Data collection may be simplified to fewer trials or larger measurements, with teacher guidance in recording and organizing results.
IEP (Individualized Education Program)
During hands-on ramp building and testing, provide visual step-by-step direction cards that break the experimental process into numbered stages, reducing cognitive load while keeping students engaged in the physical work. For data collection, offer pre-formatted recording sheets with labeled columns, picture cues for materials, and graph templates where students fill in values rather than constructing graphs from scratch. Allow students to demonstrate understanding of friction and gravity concepts through oral explanation or dictation rather than written analysis alone, and pair verbal responses with a sentence frame or graphic organizer to support organized thinking. Frequent check-ins during measurement and graphing tasks will help identify confusion early and keep momentum going.
Section 504
Ensure students have access to extended time during measurement activities and when completing data tables or graphs, as precision tasks can be more demanding under time pressure. Preferential seating near the demonstration area and reduced-distraction workspaces during data recording and analysis portions of the unit will support sustained focus. Providing a printed reference sheet of measurement steps and unit vocabulary allows students to work more independently without repeated interruptions.
ELL / MLL
Pre-teach key vocabulary for this unit — such as friction, gravity, incline, and slope — using pictures, physical demonstrations, and real objects before students encounter these terms in context. Post a visual word wall with labeled diagrams of ramp components and motion concepts that students can reference throughout the unit. Provide simplified, visual directions for each phase of the experiment, and where possible, allow students to discuss observations with a partner who shares their home language before contributing to whole-class data discussions.
At Risk (RTI)
Begin the unit by connecting ramp design to familiar experiences, such as slides, skateboard ramps, or toy cars, so students can anchor new concepts to prior knowledge before encountering measurement and graphing. Offer simplified versions of the data table that focus on one variable at a time, allowing students to experience success with collecting and recording results before building toward multi-variable comparisons. Hands-on roles during ramp testing — such as car-releaser or timer — keep engagement high and give students meaningful entry points into the scientific process without requiring mastery of written recording first.
Gifted & Talented
Challenge students to go beyond identifying which material or angle worked best by developing and testing a hypothesis about why certain combinations produced specific speeds, drawing on their understanding of force and surface texture at a conceptual level. Encourage them to design a controlled multi-variable experiment, collecting enough data across trials to calculate averages and identify trends with greater precision. Students ready for deeper extension might explore real-world engineering applications — such as how road engineers design safe highway ramps or how friction is intentionally engineered into surfaces — connecting their data analysis to authentic design problems.