Question

If possible, please plug in numbers to answer part b for the developed experiment from part a.

3) In lab 11, you found the relationship between the force exerted by a spring and its length to determine the spring constant. You could also do this using simple harmonic motion. a. Describe an experiment you could do to find a spring constant using simple harmonic motion. What would you measure, and how would you average your measurements? b. Pretending you did the lab this way, make up reasonable measurements and compute the spring constant for those measurements.

Answer 1

To determine the spring constant we have to do an experiment by hanging mass to a spring and take note of extension !...

Here is the procedure

1. Suspend the spring from a rigid support. Attach a pointer and a hook from free end make sure that the support is strong enough.

2. Hang a mass M1 g hanger from the hook of the spring

3. Then u have to set the vertical scale such that the tip of the pointer comes over the the scale.

4. Note the reading of the position of the tip of the pointer on the scale. Record the reading in loading column against zero load.

5. Then after stability and taking note u have to add another mass say M2 g slotted weight to the hanger. The pointer tip moves down.

6. Now u have to Wait for few minutes untill the pointer tip comes to rest. Then repeat step 4

7. Then repeat steps 5 and 6 till five slotted weights have been added

8. Now remove one slotted weight. The pointer tip moves up. Repeat step 6. Record the reading in unloading column.

9. Repeat step 8 till only hanger is left

10. Record your observations as given below.

Serial Load Extension no | Reading of scale Loading unloading (2 M2 V ات My 3 Suppose u get &, , 2, Ny measurement com for m. , M2, M3 gm. spring Constant a Miq=k, from (2) K (M, 4M2) g from ( ki na) kze (M, AM₂+ M₂) (n, that Karg = (x + K, tt)

Support Ek spring mass Scale Hanger FX & Гэкх ka = m/ Ka Spring constant, a= extension of spring.