Moment of Force Apparatus STEM Lab Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-12509
Master the fundamental principles of rotational mechanics, torque, and static equilibrium with the Moment of Force Apparatus STEM Lab manufactured by Educational Instrument India. Widely recognized as an indispensable teaching aid for middle school, high school, and university physics laboratories, this apparatus provides a hands-on approach to demonstrating the law of levers and the principle of moments.
Engineered for precision and repeatable accuracy, this kit enables students to visually and mathematically verify that an object is in rotational equilibrium when the sum of clockwise moments equals the sum of anticlockwise moments. By bridging abstract vector algebra with real-world mechanical applications, this STEM lab fosters deep conceptual understanding.
Key Features & Benefits
Complete Classroom Kit: Comes fully equipped with a calibrated lever arm, a low-friction metallic fulcrum stand, weight hangers, and a comprehensive set of slotted weights.
Precision Engraved Calibration: Features high-contrast, dual-sided metric markings (centimeters/millimeters) along the lever arm, eliminating parallax errors during distance measurements.
Ultra-Low Friction Pivot: The heavy-duty stand is integrated with a precision-machined knife-edge or low-friction axle pivot to ensure external environmental variables do not compromise experimental data.
Industrial Durability: Designed and manufactured by Educational Instrument India using premium-grade, corrosion-resistant alloy metals and rigid polymers meant to withstand rigorous, daily student handling.
Technical Specifications
|
Parameter |
Details |
|
Brand Name |
Educational Instrument India |
|
Product Name |
Moment of Force Apparatus STEM Lab |
|
Core Physics Concept |
Rotational Equilibrium |
|
Lever Arm Material |
High-tensile aluminum alloy or treated hardwood with centimeter scale |
|
Lever Arm Length |
500 mm / 1000 mm options available |
|
Fulcrum Stand |
Heavy cast-iron base with steel vertical pillar and knife-edge support |
|
Mass Set Included |
Brass/Steel slotted weights (typically \time, or customized packs) |
|
Hangers |
2x Stainless steel weight hangers with indicators |
|
Target Audience |
Schools, Science Academies, STEM Centers, and Physics Engineering Labs |
How to Use It: Step-by-Step Guide
Follow these steps to successfully verify the Principle of Moments in a laboratory setting:
Assemble the Base: Place the heavy cast-iron fulcrum stand on a flat, level laboratory table.
Balance the Lever: Mount the calibrated meter scale or lever arm onto the knife-edge pivot. Adjust the central balancing screw (if equipped) until the lever rests perfectly horizontal without any weights attached. This establishes the zero-torque reference point.
Apply an Anticlockwise Force: Suspend a weight hanger with a known mass at a specific distance to the left of the fulcrum. The lever will tilt downwards, creating an anticlockwise moment:
Restore Equilibrium (Clockwise Force): Suspend a second weight hanger with a different mass ($m_2$) on the right side of the fulcrum. Slide the hanger along the arm until the lever completely stabilizes in a perfectly horizontal position once again.
Record and Calculate: Measure the distance from the fulcrum to the right-hand mass. Calculate the clockwise torque:
Verify the Law: Compare the two values. Students will observe that confirming that the total anticlockwise moment equals the total clockwise moment for a system in static equilibrium.
Frequently Asked Questions (FAQs)
Q1: What is a "Moment of Force"?
A moment of force (or torque) is a measure of the tendency of a force to cause a body to rotate about a specific point or axis. It is mathematically calculated by multiplying the magnitude of the applied force by the perpendicular distance from the pivot point to the line of action of the force.
Q2: Why is the choice of pivot point critical in this apparatus?
To achieve precise scientific measurements, the pivot point must experience minimal frictional resistance. Educational Instrument India uses a precision-machined, hardened knife-edge support system that minimizes contact area, drastically reducing friction so students can gather highly accurate data.
Q3: Can this apparatus be used to demonstrate unequal or complex forces?
Yes. Teachers can expand the experiment by hanging multiple weights on both sides of the lever simultaneously. The system will still achieve equilibrium as long as the algebraic sum of all moments equals zero:
Q4: How should the apparatus be stored to maintain its calibration?
When not in use, the lever arm should be removed from the pivot stand and stored flat to avoid warping. Keep the weights and hangers clean and dry to prevent corrosion, which can subtly alter their mass value over time.
