K Constant Spring
Product Code : SCL-EAE-11126
Quick answer: The K Constant Spring is a physics practical spring used to verify Hooke's law and to find the spring constant k. Students hang known loads, measure the extension each produces and plot force against extension; within the elastic range the graph is a straight line whose slope is k. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Detail |
|---|---|
| Format | Single educational apparatus |
| Principle | Hooke's law, elastic deformation |
| Measurement | Force against spring extension |
| Calculated quantity | Spring constant, k |
For spring dimensions, load range and scale details, email [email protected] with the house code SCL-EAE-11126.
How the spring constant experiment is done
Hooke's law states that, within the elastic limit, the extension of a spring is proportional to the force stretching it: F = kx. The spring constant k, in newtons per metre, measures the stiffness of the spring; a stiffer spring has a larger k and stretches less for the same load.
- Hang the spring from a rigid support with a scale or metre rule alongside it, and note the position of its lower end.
- Add a known load and record the new position once the spring is steady.
- Increase the load in equal steps, recording the reading each time, then remove the loads in turn to check that the spring returns.
- Convert each mass to force using F = mg and work out the extension x for each load.
- Plot F against x and find k from the slope of the straight part of the graph.
If the graph begins to curve, or the spring does not return to its original length when unloaded, the elastic limit has been passed, which is itself a useful point for discussion. The spring can also be used for timing vertical oscillations, where T = 2 pi sqrt(m/k) gives a second route to k.
Key features
- Supports calculation of the spring constant from measured force and extension.
- Shows the proportionality between load and extension within the elastic range.
- Gives data suited to tables, calculations and force-extension graphs.
- Opens discussion of stiffness, elastic behaviour and the elastic limit.
- Suits repeated load-extension runs under controlled conditions.
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the K constant spring at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
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The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
How is the spring constant k found?
Apply known loads, measure the extension for each and plot force against extension. The slope of the straight-line part of the graph is the spring constant k, in N/m.
What does Hooke's law state?
Within the elastic limit, the extension of a spring is directly proportional to the applied force, F = kx.
What is the price of the K constant spring?
Prices are not published on the website. Add the K constant spring to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11126 and the quantity, to receive a quotation.
Does Lab Exports manufacture the K constant spring?
Yes. Lab Exports manufactures the K constant spring at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11126.
Request a quote
Email [email protected] with the house code SCL-EAE-11126 and the quantity, or add the K constant spring to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
