Centripetal Force Kit STEM Lab Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-12516
Demystify the physics of circular motion and rotational mechanics with the Centripetal Force Kit STEM Lab by Educational Instrument India. This high-quality educational kit allows students to explore the uniform circular motion equations through active experimentation. It is a staple tool for middle schools, high schools, AP Physics classes, and STEM academies worldwide.
Why do objects moving in a circle feel pulled outward? What keeps a satellite in a steady orbit? This lab kit gives students a hands-on way to explore these concepts. By changing variables like mass, velocity, and orbital radius, students can see exactly how these factors change the overall centripetal force. This helps them connect classroom theory with real-world applications like aerospace engineering and highway design.
Key Features & Benefits
Quantifiable STEM Learning: Allows students to directly verify the classic centripetal force equation by measuring mass, radius, and rotational period.
Low-Friction Guide Tube: Features an ergonomically designed, polished plastic or glass handle with smooth, rounded edges to reduce string friction and yield clean, highly accurate data.
Complete All-In-One Kit: Comes fully equipped with a set of calibrated rubber stoppers (varying masses), a high-tensile nylon cord, weight hangers, slotted masses, and a positioning alligator clip.
Engineered for Classroom Safety: Designed and manufactured by Educational Instrument India using shatter-resistant materials and secure weight attachments to ensure student safety during high-velocity rotation.
Technical Specifications
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Parameter |
Details |
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Brand Name |
Educational Instrument India |
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Product Name |
Centripetal Force Kit STEM Lab |
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Core Scientific Principles |
Centripetal Acceleration, Uniform Circular Motion, Tension Force |
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Mathematical Equation |
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Guide Tube Material |
High-impact polycarbonate or fire-polished glass with protective sleeve |
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Spinning Masses |
Pack of 3 premium rubber stoppers of distinct, pre-measured masses |
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Counterweight Mass Set |
1x Weight hanger and a collection of slotted weights |
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Cord Type |
high-tensile, low-stretch braided nylon line |
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Target Grade Levels |
Middle School to Introductory University Physics |
How to Use It: Step-by-Step Guide
Follow these steps to successfully measure and calculate centripetal forces in a laboratory setting:
Assemble the Kit: Thread the high-tensile nylon cord through the low-friction guide tube. Tie one end securely to a selected rubber stopper (the rotating mass .
Attach the Counterweight: Tie the opposite end of the string to the hanging mass holder. Add slotted weights to create a known downward hanging mass. The weight of this hanging mass (provides the exact tension force required to keep the stopper in its circular path
Set the Radius: Pull the string until you reach your desired orbital radius . Attach an alligator clip to the string just a few millimeters below the bottom of the guide tube. This clip serves as a visual marker to ensure the radius remains constant while spinning.
Spin the Apparatus: Hold the guide tube vertically in one hand. Start swinging the rubber stopper overhead in a horizontal circle. Adjust your speed until the alligator clip hangs steadily just below the tube without touching it or dropping down.
Time the Rotation: While maintaining a steady spin, have a lab partner use a stopwatch to record the time it takes for the stopper to complete 10 or 20 full revolutions. Divide the total time by the number of laps to find the precise orbital period .
Calculate and Verify: Compute the tangential velocity Substitute this value into the centripetal force equation and compare it to the theoretical hanging weight Students will watch the data converge, proving the mathematical laws of rotational motion.
Frequently Asked Questions (FAQs)
Q1: What is the difference between centripetal and centrifugal force?
Centripetal force is a real force directed inward toward the center of curvature that keeps an object moving in a circular path (in this lab, it is provided by the tension in the string). Centrifugal force is not a real physical force; rather, it is an apparent, outward inertial sensation felt by an observer inside the rotating frame of reference due to Newton's first law (inertia).
Q2: Why is the alligator clip necessary for this experiment?
The alligator clip acts as a critical reference point. If the student spins the stopper too quickly, the stopper will fly outward, pulling the hanging masses upward. If they spin too slowly, the hanging masses will slide downward. The clip helps the operator keep a steady hand, ensuring the orbital radius ($r$) stays constant during data collection.
Q3: Why does the spinning stopper fly off in a straight line if the string breaks?
According to Newton's First Law of Motion, an object in motion will maintain a straight-line path unless acted upon by an external net force. The moment the string breaks, the inward centripetal tension drops to zero. Without that force pulling it inward, the stopper flies off along a straight path tangent to the circle at the exact point of release.
Q4: How should the nylon cord be maintained?
Periodically inspect the nylon string for frays or structural wear, especially near the knots tied to the rubber stoppers and weight hangers. If the cord shows signs of thinning, replace it immediately with standard high-tensile nylon line to maintain safe operating conditions.
