Extension Spring
Acts as test material for studying the property of elastic objects such as experiments on Hooke's Laws and the properties of oscillating bodies.
Disc Pointer
Acts as the convenient pointer as it is suspended from the free end of a helical spring. Its application is found in Hooke's Law experiment that utilizes the springs.
20g mass
The 20 gram mass acts as load to test the elastic constant or validity of Hooke's Law for spring; 20 g mass may also be used for another set-up of lever. Hooked masses may also be used for other activities that require varied values of mass.
C-clamp with hook
Provides a movable point of suspension for objects in the basic set-up due to its hook attachment. It is utilized in pulley experiment, resolution/composition of forces, projectile set-up, Hooke's Law.