Teach electricity with hydraulic

thingiverse

It's Difficult to Understand Electrical Phenomena 2 resistances of 1 Ohm each in a series circuit form a global resistance of 2 Ohms, while 2 resistances in a bypass circuit make only 0.5 Ohms. This equation seems abstract but is easily demonstrable with the hydraulic analogy. The Project Aims to Explain Electrical Phenomena Using a Series of Components Pay Attention to Printer Settings Print all parts with similar settings to make this project functional. Make thick outlines to have waterproof parts. Use ABS for the same reason. Make all parts with 15% infills, except "Lever CW" and LeverTouchPoint" which need to be completely full for balance. Post-Printing Instructions After printing all the parts, insert O-Ring. They are stock faucet O-Ring with 8.9 x 14.3 X 2.7 mm dimensions. Insert O-rings into the 3D printed parts. Assemble the transparent tube and plastic bottles. Connect the tubes to the 3D printed parts. First Test with One Resistance The flow meter is a simple balance needle that measures the flow rate (= electric power) and allows comparison of results with more resistance. This project aims to teach students electrical phenomena by comparing fluid phenomena. Objectives: * Better explain electrical phenomena, including current and voltage matters. * Introduce 3D printing and modeling to students. * Encourage creativity in designing new components such as diodes, transistors... Audiences: * Students aged 11-17 years old. * Middle school 8th grade students studying physics and chemistry. Subjects: * Science * Physical-Chemistry * Technology Skills Learned (Standards): * Testing * Results interpretation * Working group Lesson/Activity Duration: Approximately 4 hours with graphics students and other exercises simultaneously. Preparation: Students should have basic theoretical knowledge of electricity, including major components of a circuit and main principles. Materials: * 3D printed parts (make several resistances) * O-rings (8.9 x 14.3 X 2.7 mm) * 2 plastics bottles * Transparent tube (diameter 10) Rubric & Assessment Students succeed when they understand the link between hydraulic and electricity and imagine new components to improve the hydraulic circuit. Assessment: Students can be assessed by questions on the relationship between electricity and fluids and their research.