Question

Hooke’s Law Hooke's Law For this lab you need to plot a graph of Force( y axis) versus elongation (x axis) for a spring. The graph of force vs elongation for spring should be a straight line (Hooke's law). From the slope determine the elastic constant, k. If you are not using Excel, draw your graphs by hand, scan or take a picture and insert the graph in the lab report. Your graph should have a title, and the axis should be labeled. The lab template has a" sample " graph. Name Abstract; Include instead of these lines the objectives of the lab (what you investigated), the short description of how you did it and the conclusions formulated based on the obtained results. It should be ½ to 1 page long. Picture of the experimental set up Read the Instructions and Procedure from the HOL lab manual. Record the cumulative stretch (elongation) for one spring. Make sure you don’t stretch the spring beyond the elasticity limits. Force (N) Accumulated (cm) Elongation (stretch) Accumulated (m) Elongation (stretch) Data Point 1 Data Point 2 Data Point 3 Data Point 4 Data Point 5 Data Point 6 Data Point 7 Data Point 8 Data Point 9 Data Point 10 Calculations and Analysis 1. Plot the Force (y-axis) vs elongation (x-axis) on a computer spreadsheet or on piece of paper. Insert below the graph (Excel or picture): 2. Find the spring constant for the spring in Newton/meters from the slope the graph. (Refer to the Excel tutorial in the Introduction section or/and read ecampus instructions. k= 3. A student measured 15s for the 20 complete oscillations for a 200g object attached at the free end of a spring. Calculate the period of oscillation (T) and the spring constant (k). Write the equation used and then the numerical values. 4. What are the SI units for frequency (f), period (T) and spring constant (k)? 5. What are the sources of errors in this experiment?

Answer 1