Hooke’s Law Apparatus
Product Code : SCL-EAE-11227
Quick answer: The Hooke's Law Apparatus is used to verify that the extension of a spring is proportional to the load within the elastic limit, F = kx. Students add known masses, read the extension against a scale, plot a force-extension graph and find the spring constant from its gradient. No electrical supply is needed. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Detail |
|---|---|
| Principle | Force proportional to extension within the elastic limit (F = kx) |
| Experiment | Load-extension measurement and spring-constant determination |
| Topic | Elasticity and mechanics |
| Operation | Mechanical loading, no electrical supply |
Frame, spring, scale range, masses supplied and maximum load are not listed on this page; email [email protected] with the house code to confirm the supply scope.
How the Hooke's law experiment is done
Hooke's law states that the extension x of a spring is proportional to the applied force F as long as the elastic limit is not exceeded: F = kx, where k is the spring constant in N/m. A graph of force against extension is then a straight line through the origin whose gradient is k.
- Stand the apparatus upright on a steady bench and check that the unloaded spring hangs freely beside the scale.
- Record the initial pointer reading with only the hanger attached.
- Add known masses one at a time and record the scale reading after each addition.
- Remove the masses one at a time and record the readings again while unloading.
- Work out each extension, convert the masses to force (F = mg) and plot force against extension.
If the loading and unloading readings agree, the spring has stayed within its elastic limit. If it does not return to its original length, it has been permanently deformed, which introduces the idea of the elastic limit.
Key features
- Verifies Hooke's law, F = kx, within the elastic limit
- Load and extension values suit graph plotting and calculation
- Spring constant found from the gradient of the force-extension graph
- Extension read directly against a scale
- Loading and unloading readings separate elastic from permanent deformation
- Purely mechanical, no electrical supply needed
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the Hooke's law apparatus 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.
Related Electrical and Electronics products
- Slinky Spring (SCL-EAE-11226)
- Newton's Law of Cooling (SCL-EAE-11213)
- Steam Engine Model with Dynamo (SCL-EAE-11212)
- Brass Wire (100 gm) (SCL-EAE-11209)
- Manganin Wire (100gm) (SCL-EAE-11246)
- Step Down Transformer (SCL-EAE-11207)
The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
How is the spring constant found with the Hooke's law apparatus?
Plot force (F = mg) against extension. The gradient of the straight part of the graph is the spring constant k in N/m.
What is the elastic limit of a spring?
It is the largest load the spring can take and still return to its original length. Beyond it, extension is no longer proportional to force and the spring stays stretched.
What is the price of the Hooke's law apparatus?
Prices are not published on the website. Add the Hooke's law apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11227 and the quantity, to receive a quotation.
Does Lab Exports manufacture the Hooke's law apparatus?
Yes. Lab Exports manufactures the Hooke's law apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11227.
Request a quote
Email [email protected] with the house code SCL-EAE-11227 and the quantity, or add the Hooke's law apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
