# Pendulum help PLLLLLLLLLLLEASE

• Idrees
In summary, the conversation is about calculating the frequency and period of oscillation for a pendulum with a 2 m long string and a 200g mass attached to it. The formula used for calculating the period is 2pi*square root (L/g) where L is the length of the string and g is the acceleration due to gravity. The formula for frequency is 1/T, where T is the period. The initial amplitude is also mentioned, with a question about how it would affect the calculations.
Idrees
Pendulum help PLLLLLLLLLLLEASE!

Hi I am just doing typical first yr physics pendelum

Im trying to calculate the frequency of of the oscillation of the pendulum and also calculate the period of oscillation

here are the details:

2 m long string pendulum
200g mass attached to it
initial amplitude of 10 cm and had to calculate the period of oscillation ??

i use the typical 2pi*square root ( L/g) where is use valcues 2 m and g= 9.8 m/s 2 ? is this right way ?

for frequency of oscillation which formula i shud use? please help and if the initial amplitude now is 20 cm ... ?

The frequency of oscillation is just 1/period.
So if you work out the period to be 2secs the frequency = 1/2 Hz

Yes. Assuming the 2 m is to the center of the mass.
Use f = 1/T to get the frequency after you have the period.

## 1. What is a pendulum?

A pendulum is a weight suspended from a fixed point that can freely swing back and forth. It is commonly used in clocks and other timekeeping devices.

## 2. How does a pendulum work?

A pendulum works by converting potential energy into kinetic energy as it swings back and forth. The length of the pendulum and the force of gravity determine the speed and period of the pendulum's swing.

## 3. What factors affect the swing of a pendulum?

The factors that affect the swing of a pendulum include its length, weight, and the force of gravity. The air resistance and friction also play a role in the pendulum's movement.

## 4. How can I use a pendulum to tell time?

A pendulum can be used to tell time by measuring its period, which is the time it takes for one complete swing. By adjusting the length of the pendulum, it can be made to swing at a specific rate, allowing it to function as a clock.

## 5. What are some practical applications of pendulums?

Pendulums have many practical applications, including timekeeping, regulating the movement of machinery, and determining the acceleration due to gravity. They are also used in some forms of alternative medicine for practices such as dowsing and divination.

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