Lab 10 - Oscillations

Save your work frequently! between your answers and your observations. Investigation 2: Energy Perspective A. When the block first passes (approximately) x = +1.0 m (while moving to the left), 1. Is spring potential energy positive, negative, or zero ? Is it increasing or decreasing ? Spring potential energy is always psotive and it is increasing since there is kinetic energy being coverted into ptotential energy because of the spring. 2. Is kinetic energy positive, negative, or zero ? Is it increasing or decreasing ? The kinetic energy is also positive and is decreasing since it is being converted to potential energy by the spring. B. When the block next passes (approximately) x = +1.0 m (while moving to the right), 1. Is spring potential energy positive, negative, or zero ? Is it increasing or decreasing, or staying the same ? The potential energy is increasing and positive. The kinetic energy is being converted to potential energy where it will then go in the opposite direction. 2. Is kinetic energy positive, negative, or zero ? Is it increasing, decreasing, or staying the same ? The kinetic energy is positive and decreasing and being coverted to potential energy. C. At what location(s) is (are) 1. spring potential energy zero ? X=0 2. spring potential energy greatest? -xmax and xmax 3. kinetic energy zero ? -xmax and xmax 3

Save your work frequently! C. When the block is at x = 0 m (while moving to the right), fill out the following table. Show your work! Position (m) 0 Velocity (m/s) 14.15 Acceleration (m/s 2 ) -2.7 Spring force (N) -27 Kinetic energy (J) 1000 Potential energy (J) 0 Mechanical energy (J) 1000 D. When the block is at x = -5.0 m (x min ), fill out the following table. Show your work! Position (m) -5 Velocity (m/s) -4.5 Acceleration (m/s 2 ) 40 Spring force (N) 400 Kinetic energy (J) 0 Potential energy (J) 1000 Mechanical energy (J) 1000 E. When the block is at x = +1.0 m (while moving to the left), fill out the following table. Show your work! Position (m) 1 Velocity (m/s) -13.8 Acceleration (m/s 2 ) -8.46 Spring force (N) -86 Kinetic energy (J) 950 Potential energy (J) 50 Mechanical energy (J) 1000 F. When the block is at x = -1.0 m (while moving to the right), fill out the following table. Show your work! Position (m) -1 Velocity (m/s) -13.8 Acceleration (m/s 2 ) 10 Spring force (N) 100 Kinetic energy (J) 950 Potential energy (J) 50 Mechanical energy (J) 1000 6