**PURPOSE: **To quantitatively demonstrate how the spring constant effects the period of a mass on a spring.

**DESCRIPTION: **Determine the spring constant from the relationship F=kx using various numbers of 200 gram weights hanging from the spring. Hang groups of 200 gram weights from the spring and create vertical oscillations, obtaining the period usin
g the manual timer. Compare with the period calculated from the relation T = 2 pi SQRT (m/k), where k was obtained above.

This can be compared with actual integration of the equations of motion using a computer.

**SUGGESTIONS: **

**REFERENCES: ** (PIRA
unavailable.)

**EQUIPMENT: **4 200g masses, 2-meter scale, C-clamp, aluminum block, table clamp, pendulum clamp, 5 foot rod, display timer, small combination square.

**SETUP TIME: **10 min.