Centrifugal track (yellow aluminum alloy) Type: Physics Teaching Instrument Material: Plastic and metal (track finished in yellow aluminum alloy) Size: 280 x 110 x 345 mm / 11.02 x 4.33 x 13.58 in Weight: 650 g Contents: 1 Centrifugal Orbit Model (includes base frame, circular track, steel balls, plastic holders, and ball storage bags) Product overview This centrifugal track is designed for middle school physics to demonstrate the motion of objects on a vertical circular orbit. The model shows how a rolling ball behaves on a circular rail in a vertical plane, including the conditions required for the ball to pass the point, the point at which the ball can lose contact and follow a projectile path, and how starting height affects motion. Key benefits Clear demonstration of core mechanics concepts: visually shows energy conversion between potential and kinetic energy, centripetal requirements to maintain contact at the of the loop, and projectile motion when contact is lost. Practical and repeatable: stable base and durable components let students run multiple trials to observe changes when the start height or initial conditions are adjusted. Classroom ready: compact size and moderate weight make it easy to place on a desk or lab table for demonstrations and smallgroup experiments. Durable construction: yellow aluminum alloy track paired with plastic and metal parts offers a good balance of visibility, durability, and ease of handling. Features and performance Vertical circular rail shape allows demonstration of motion in a vertical plane and the key point where the ball either continues through the or detaches. Includes several steel balls and storage bags for repeated tests and group activities. Base frame provides stable support; ensure the base is level for accurate demonstrations. Designed for visible, handson observation of when the ball reaches the point, deviates upward from the track, and falls back onto the lower section of the rail. How to use Place the unit on a flat desk. Make sure the base is level before each run. Release a steel ball from different starting heights on the inclined section. Observe whether the ball completes the loop or detaches and follows a curved trajectory. Repeat trials while lowering the starting height to find the threshold height below which the ball cannot pass the point of the circular orbit. Practical applications and scenarios Classroom demonstration: Teacherled demonstration to introduce circular motion, centripetal force, and energy conservation to a middle school physics class. Student lab experiment: Small groups perform controlled trials to measure the minimum starting height needed for a ball to pass the loop and record observations for lab reports. Science fair or project display: Use the model to illustrate projectile motion when the ball loses contact with the track and to explain the underlying physics. Warm tips Product color may vary slightly from images due to different lighting and screen settings. Manual measurements may vary by plus or minus 1 to 3 cm. Please refer to the actual object for exact dimensions. This centrifugal track provides a handson, visual way to explore vertical circular motion and related physics principles in middle school teaching environments.