Periodic Motion can be used to measure???
Answers
Answer:
Periodic motion is any movement of an object that repeats itself over a given length of time. We call the time it takes for the movement to repeat itself the time period, which we measure in seconds. Frequency, or the number of repetitions occurring each second, is measured in hertz.
What is Periodic Motion?
The universe is full of movements that repeat themselves over and over in patterns. The nice thing about patterns is that we can describe and explain them, which often includes using math. For example, the term periodic motion refers to any movement of an object that is repeated in a given length of time. Whatever the motion may be, the period of time it takes to get back to where it started is called the time period of the motion.
We can also define a frequency for the motion measured in hertz, which is the number of complete cycles each second. So for example, if the time period of a motion is 0.2 seconds, that's the same as a frequency of 5 hertz. This is because there are five 0.2-second cycles in each second.
Examples of Periodic Motion
We can find dozens of examples of periodic motion in our everyday lives because so many actions and movements are repetitive. A rocking chair rocking is periodic motion. A swing swinging is periodic motion. A satellite orbiting the Earth is also periodic motion, as are the vibrations of a tuning fork or the swing of a pendulum.
Simple Harmonic Motion
There is a special case of periodic motion that is important in physics. It's called simple harmonic motion and occurs when an object moves back and forth around a middle or equilibrium position. For a movement to be considered simple harmonic motion, the restoring force that pulls it back towards the middle has to be proportional to the distance from that position.
Answer:
rotation and revolution of Earth