A mass on a spring is undergoing simple harmonic motion. At which position is the mass moving at its maximum speed? A. The mass only moves with a single speed, and so it's moving at its maximum speed at every position. B. The mass moves at its maximum speed at its maximum displacement, that is, where the spring is maximally stretched. C. The maximum speed occurs at x = 0, the spring's equilibrium position. D. The maximum speed occurs at the position where the kinetic energy of the mass is equal to the elastic potential energy of the spring. A mass on a spring is undergoing simple harmonic motion. Which one statement best describes what happens to the different forms of energy as the mass oscillates? A. The kinetic and elastic potential energies both continually increase and so the total energy continually increases. B. The kinetic and elastic potential energies are both constant and so the total energy also remains constant. C. The kinetic energy is continually increasing and the elastic potential energy is continually decreasing so that the total energy remains constant. D. The kinetic and elastic potential energies are continually interchanging but the total energy remains constant.
Simple harmonic motion
Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.
Simple Pendulum
A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.
Oscillation
In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.
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