Lessons 6: Elastic Potential Energy
One form of stored energy is called elastic potential energy (EPE). Elastic potential energy depends on two factors: the stiffness of a material called the spring constant (k) and the stretch or compression distance (x). Can you find the elastic potential energy of a stretched spring?
Doing the science
- You must have completed Lesson 2: Bounce Back and have those data available to complete this activity.
- Record your data from Lesson 2 in the appropriate places in Table 1 below
- Use the following formula to calculate the EPE of the spring for each of the two hanging
masses and record your calculation in Table 1.
EPE = ½ x (spring constant) x (change in spring length)2