Bob Set Of 6 Metals
Product Code : SCL-PLE-11705
The StemAids Bob Set of 6 Metals is an essential physics demonstrator engineered for the empirical study of material properties, simple harmonic motion (SHM), and thermodynamics. Optimized for Secondary and University-level laboratories, this set provides six geometrically identical spheres (25mm diameter) of varying elemental compositions. Manufactured to ISO 9001:2015 standards, it facilitates the quantification of density, specific heat capacity, and the independence of pendulum periods from mass.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material Composition |
Set includes: Brass, Copper, Aluminum, Iron (Steel), Lead, and Zinc |
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Geometry |
Precision-ground spheres with integrated suspension hooks |
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Standard Diameter |
25mm (±0.1mm tolerance for volume consistency) |
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Surface Finish |
Polished or anti-oxidation coated for environmental durability |
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Functional Principle |
Archimedes' Principle, Pendulum Law (T=2πL/g), Calorimetry |
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Storage Interface |
Segmented protective case to prevent surface abrasion |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Geometric Volume Standardization: Facilitates student visualization of how identical volumes can possess significantly different masses, supporting Density Module 101.
- Pendulum Period Quantification: Enables the physical study of oscillation, allowing learners to apply different bobs to a string to verify that mass does not affect the period of a simple pendulum.
- Specific Heat Analysis: Supports the analysis of thermal energy absorption when bobs are heated in a steam chamber and transferred to a calorimeter.
- Material Property Evaluation: Allows students to evaluate the relationship between atomic mass and macroscopic density by calculating the mass-to-volume ratio (D=m/v) for each element.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) with anti-corrosion VCI (Volatile Corrosion Inhibitor) lining to protect the metallic surfaces during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a reference table of theoretical densities in English.
- Durability: Tropicalized design featuring specialized coatings on the iron and zinc bobs to prevent oxidation in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Bob Set of 6 Metals directly ensures vertical manufacturing control:
- In-House Precision Machining: Every bob is batch-tested for diameter and sphericity to ensure that the volume remains a constant control variable across all experiments.
- Batch-Tested for Uniform Reliability: Suspension hooks are tensile-tested to ensure they remain secure during high-amplitude oscillation demonstrations.
- Direct Factory Spares Availability: Guaranteed availability of individual replacement bobs to maintain complete laboratory sets without re-purchasing entire kits.
- Manufacturing Control: Direct oversight of metallurgical purity ensures that experimental density results align closely with standard periodic table values.
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