You want to create a pendulum clock (here on Earth) that will take 0.5 seconds to swing from one side to the other (which means it takes 1 second to go back and forth). How long should the pendulum be? O 1m O It depends on the mass of the pendulum bob O 25 cm O 9.8 m O 6 cm O It depends on the mass of the pendulum bob and the spring constant O 50 cm Continuing from the previous problem: You travel to Mars (where gravitational acceleration is 3.7 mis and want to keep using your pendulum clock there (again, taking 0.5 seconds to swing from one side to the other) What adjustments do you need to make? O No adjustments are needed - the pendulum clock will still work properly on Mars. O It's impossible - nothing you do can get this pendulum clock to work on Mars O Increase the mass of the pendulum bob O Make the string shorter O Make the string longer O Decrease the mass of the pendulum bob
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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