This simple pendulum calculator is a tool that will let you calculate the period and frequency of any pendulum in no time. Read on to learn the period of a pendulum equation and use it to solve all of your pendulum swing problems. We made a video about pendulums! Watch it here:
First of all, a simple pendulum is defined to be a point mass or bob (taking up no space) that is suspended from a weightless string or rod. Such a pendulum moves in a harmonic motion - the oscillations repeat regularly, and kinetic energy is transformed into potential energy, and vice versa. If you want to calculate the energy of the pendulum, make sure to use our kinetic energy calculator and potential energy calculator. Diagram of simple pendulum, an ideal model of a pendulum.(Chetvorno / Public domain)
Surprisingly, for small amplitudes (small angular displacement from the equilibrium position), the pendulum period doesn't depend either on its mass or on the amplitude. It is usually assumed that "small angular displacement" means all angles between -15º and 15º. The formula for the pendulum period is T = 2π√(L/g)where:
You can find the frequency of the pendulum as the reciprocal of period: f = 1/T = 1/2π√(g/L)
For a pendulum with angular displacement higher than 15º, the period also depends on the moment of inertia of the suspended mass. Then, the period of a pendulum equation has the form of: T = 2π√(I/mgD)where:
To calculate the time period of a simple pendulum, follow the given instructions:
To determine the acceleration due to gravity using a simple pendulum, proceed as follows:
To calculate the length of a simple pendulum, use the formula L = (T/ 2π)²*g. Where T is the time period of the simple pendulum and g is the acceleration due to gravity.
99.36 cm. Using the formula, L = (T/ 2π)²*g, we can determine that the length of a simple pendulum with a time period of 2 seconds is 99.36 cm. Text Solution Solution : Given, increase in length of the pendulum = 0.21L, where L is the initial length. <br> Hence, increased length L. = L + 0.21 L = 1.21 L <br> Let, the time period change to T. from T due to the change in length. <br> As `TpropsqrtL`, <br> `T/sqrtL` = constant <br> Thus, `T/sqrtL=(T.)/(sqrt(L.))or,T.=sqrt((L.)/L)T=sqrt((1.12L)/L)T=1.1T` <br> `therefore` Increase in time period = `T.-T=1.1T-T` <br> = 0.1 T = 10% of T <br> Hence, the time period increase by 10 %. |