Period of Simple Harmonic Oscillator

956 Words4 Pages
Experiment 8-1. Period of simple harmonic oscillator 1. Purpose. Measure the period of simple harmonic oscillator and compare it with theoretical result. 2. Theory Period of a mass m which is hang up to a spring is (1) In this equation, T means the period, and k is spring constant. According to Hooke’s law, a force that is applied on the mass is proportional to a stretched or contracted distance, so it can be expressed as F=kx. Hence, when we apply force to stretch spring and measure the varied distance, we can obtain the spring constant as drawing the line on the graph and measuring its slope. 3. Equipment 4. Methods Measure spring constant. (1) Measure the mass m that includes glider and glider hook. (2) Make air track horizontal. And set the pulley at the end of the air track. (3) Stick a string to the glider and mass hanger. (4) As adding some masses on the mass hanger, measure the varied distance. (5) Change the spring, and repeat above procedure. Measure period (1) Pull the glider with some distance, and release it. (2) Measure the period, and fix the pulled distance. (3) Add 50g to the glider, and repeat the above procedure. (4) Repeat it, as changing the spring. 5. Date sheet Measure spring constant Measure period Theoretical calculation (1) The results in [표1], draw graph with distance and force, and then the incline of the line means the spring constant. (2) As using mass of glider and spring constant, calculate the period by equation (1) Calculate the error factor between theoretical and experimental period. Question (1) As adding a mass on the glider, is the period faster of slower? (2) If changing the pulling distance, is the period also changed? Experiment 8-2. Motion on the slope. 1. Purpose As changing angle of slope, measure the period of a

More about Period of Simple Harmonic Oscillator

Open Document