Eleventh Grade Mechanical Engineering Science Projects (3 results)

If you're interested in object motion and enjoy building things or taking mechanical things apart to see how they work, then it sounds like you'd be interested in mechanical engineering. Check out one of the mechanical engineering project ideas below and you could find exactly what you're looking for.

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Science Fair Project Idea
Before cannons widely replaced them, siege engines were often used by armies to throw large stones and other projectiles to break down castle walls. One of the most advanced siege engines used in the Middle Ages was the trebuchet, which used a large counterweight to store energy to launch a payload, or projectile. The horizontal distance the payload would travel is called the trebuchet's range. Figure 1, below, shows a modern reconstruction of a trebuchet. The range of a trebuchet has… Read more
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Time Required Long (2-4 weeks)
Prerequisites Some knowledge of physics will be helpful when doing this project.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision is required when building and operating a trebuchet.
Science Fair Project Idea
Noise is everywhere. From the clanking of a cowbell to the din of the lunchroom, we are surrounded by noise. Sometimes there's no way to get away from it, but there is a way to deal with it—constrained-layer damping. By simply creating a layered sandwich of somewhat flexible materials, what was once a noisy cowbell can become a "noise blanket." This science fair project shows you how to transform a noisy piece of metal into a sound-muffling constrained-layer damper. You'll record the… Read more
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You must have access to a basic PC with a built-in or simple external microphone and sound card (most recent computers include all that is needed), as well as a sound program like AudacityTM.
Cost Low ($20 - $50)
Safety Use caution when using the tin snips. Adult supervision is recommended.
Science Fair Project Idea
The amount of energy produced by most photovoltaic (solar) panels is limited, due to their immobility. However, when photovoltaic panels track the movement of the Sun, their efficiency increases significantly. This can be done with computers and sophisticated electronics, but for rural or wilderness settings, a "low-tech" sun tracker would be beneficial. A solution exists in nature: the sunflower. The challenge in this science fair project is to design and build a device that imitates the… Read more
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Time Required Very Long (1+ months)
Prerequisites Experience designing and building mechanical devices is preferred, or at least the willingness to invest many hours designing, testing, and re-designing.
Material Availability You will need a photovoltaic panel, approximately 200 square cm.
Cost Average ($50 - $100)
Safety No issues