Lab 7 Testing Conservation of Energy Worksheet Your Name 1. Write a statement of the conservation of energy. Watch the experiment in the lecture and record all the values 2. Mass of the bob = _0.3 kg 3. Diameter of the bob = 0.04 m For each height values, calculate the potential energy of the bob and enter your results in the table. 4. Use the measured time the bob takes to cross the photo gate to calculate its speed at that instant and enter those values also in the table. 5. Use the value of the speed to calculate the kinetic energy of the bob at the instant when it reaches the photo gate. h (m) U = mgh (J) 1 (s) v = d/t (m/s) K = 1/2mv2 (J) 0. 1 0.29 0.028 1.4 0.29 0.15 0.0203 0.2 0.0197 0.25 0.0073 0.3 0.0035 6. Comment on the result of the experiment. Are you satisfied that the experiment did justice to the principle of conservation of energy