This engineering challenge allows students to explore the transformation of potential to kinetic energy using jumbo craft sticks, rubber bands and mini marshmallows.
The concepts addressed in this lesson include:
Transformation of energy
Trial and error
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Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system. Emphasis is on relative amounts of potential energy, not on calculations of potential energy. Examples of objects within systems interacting at varying distances could include: the Earth and either a roller coaster cart at varying positions on a hill or objects at varying heights on shelves, changing the direction/orientation of a magnet, and a balloon with static electrical charge being brought closer to a classmate’s hair. Examples of models could include representations, diagrams, pictures, and written descriptions of systems. Assessment is limited to two objects and electric, magnetic, and gravitational interactions.
Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.