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Rube Goldberg Project Research Paper

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Step two of our Rube Goldberg project is a pulley system. The pulley system consists of a small bucket with washers inside. Attached to the other side of the pulley system are washers as well. The pulley system is at first unequally weighted, having more weight on the non-bucket side. It is slightly heavier on the one side because when the marble falls into the bucket, the bucket will become heavier causing the washers to advance upwards as the bucket advances downwards. When this happen, another marble is released. A pulley is a simple machine that consists of a wheel on an angle, which allows a rope to glide smoothly along it, allowing the object to be lifted easily. This step relates to the physics content because it corresponds to forces. When a free body diagram of a …show more content…
The pulley has an applied force (Fa), tension (FT), friction (Ff) and also force of gravity (Fg). Applied force is a force that results when one object makes contact with another and pushes or pulls on it. Tension is a pulling force from a rope or string on an object that always points toward the rope or string. Friction is when it opposes the sliding of two surfaces across one another; friction acts opposite to the motion or attempted motion. Force of gravity is force of attraction between any two objects.

Step five of our Rube Goldberg project is a motion sensor. The motion sensor is attached to the pegboard and is activated when the marble is thrown outside of the cart, in front of the sensor. When it is activated, the light will turn on. A motion sensor is a device that can detect motion and set of an alert. Depending on the type of motion sensor, different options are

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