Elastic Spring Lab

The rest position of mass attached with spring is its mean position or equilibrium position
By applying external force, mass can be displaced from it mean position
If the mass is displaced from mean position and applied force is removed, it starts to and fro motion about its mean position
During this to and fro motion, its kinetic energy is maximum at mean position while zero at extreme positions
Potential energy is maximum at extreme positions, while it is zero at mean position
Spring constant is the measure of stiffness of spring. Large value of spring means stiff spring while small values mean soft spring
The motion of mass attached with spring is simple harmonic motion
Time period of mass attached with spring is directly proportional to square root of mass and inversely proportional to square root of spring constant

Here are some formulae:

Time Period:

$$ T= 2\pi \sqrt{\frac{m}{k}} $$

Potential Energy:

$$ P.E= \frac{1}{2}kx^2 $$