Zip Line Physics An Engineering Design Unit Curt

Zip Line Physics An Engineering Design Unit Curt Blimline Science Department Williamsburg High School, Williamsburg, OH Big Idea ACS A (Real world application) - Safety of zip lines is important Human Safety The Challenge Design a zip ride trolley system with a braking mechanism that delivers a safe and smooth ride on a test zip line. http: //www. piiholozipline. com/gallery/ Guiding Questions 1. What are the components of a zip line system? 2. What are zip lines used for? 3. What design characteristics contribute to the smoothness of the ride? 4. How do you brake a zip line trolley? 5. How do you determine the safety of your design? 6. What forces exist in zip lines? 7. How does friction affect the design of a zip line? { Zip lines have been used for many years to transport goods and individuals across remotely accessible terrain. In recent years, zip lines have become popular as entertainment rides in vacation destinations. The engineering and design of both safe and enjoyable zip line rides is an important consideration for these businesses as they cater to individuals that are not experienced in the use of zip lines. for the safe transport of individuals and goods. C (Career connections) - Careers impacted by this unit include mechanical, structural, and materials engineering. S (Societal impact) – Society benefits from the enjoyment and functions of safe zip line systems. Zip Line Physics Assessment Results Activity #4 – Zip Ride – designing a safe zip line trolley system with a braking mechanism 77% 80% 60% 40% 16% 20% 0% Average Post. Assessment Pre. Assessment Academic Standards ONLS Activity #3 – Zip Stop – designing a rating system for zip line braking mechanisms q Air Resistance and Drag q Friction q Forces in two dimensions § Adding vector forces § Motion down inclines NGSS q HS-PS 2 -1. Analyze data to support the claim that Newton’s second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration. q HS-ETS 1 -2. Design a solution to a complex real-world problem by breaking it down into smaller, more manageable problems that can be solved through engineering. q HS-ETS 1 -3. Evaluate a solution to a complex real-world problem based on prioritized criteria and trade-offs that account for a range of constraints, including cost, safety, reliability, and aesthetics as well as possible social, cultural, and environmental impacts. Activity #2 – Zoom – investigating the forces experienced on zip lines Activity #1 – Zip and Deliver – use engineering design to deliver a marble to a target via a zip line Curt Blimline Contact Information: blimline_c@burgschools. org 513. 724. 2211