Quick Answer: The Hooke’s Law Apparatus is a spring-extension set for verifying Hooke’s law in the physics lab. A spring hangs from a vertical stand, and a pointer moving over a graduated scale shows the extension as slotted weights are added to the hanger.
Last updated: October 2026
Key Features
Vertical support stand with an upper hook for the spring
Spring with a pointer fixed near its lower end
Graduated scale for reading the pointer position
Weight hanger and slotted weights for adding known loads
About This Product
Students note the pointer reading with no load, add weights one at a time and record each new reading to find the extension. A graph of force against extension shows the straight-line relationship within the elastic limit, and its slope gives the spring constant.
Frequently Asked Questions
How is the spring constant found with the Hooke’s Law Apparatus?
Extensions are recorded for several known loads and plotted against force; the slope of the straight part of the force-extension graph gives the spring constant.
