Final answer:
The force constant 'k' is a measure of a spring's stiffness, with higher values indicating a stiffer spring, as described by Hooke's law. It is measured in newtons per meter (N/m), and experiments typically involve varying this constant to observe changes in the spring's response.
Step-by-step explanation:
The force constant, often represented by the variable 'k', is an essential concept in physics, particularly in the context of Hooke's law. This constant denotes the stiffness or rigidity of a spring system; a higher force constant signifies a stiffer spring. Hooke's law is described by the equation F = -kx, where F is the restoring force exerted by the spring and x is the displacement from the spring's equilibrium position. The force constant k is measured in newtons per meter (N/m), and it is a direct measure of the spring's ability to resist deformation. When you maximize the applied force (measured in Newtons) and vary the spring constant using a blue slider in a lab setup, you are essentially observing how the spring's stiffness affects its response to the applied force. An experiment that involves measuring the restoring forces of springs and checking their compliance with Hooke's law to calculate their force constants is a typical procedure in many physics labs.