## What factors affect pendulum period?

The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. The period is completely independent of other factors, such as mass.

## What is the purpose for the bob on a pendulum?

In most pendulum clocks the rate is adjusted by moving the bob up or down on the pendulum rod. Moving it up shortens the pendulum, making it beat more quickly, and causing the clock to gain time.

## What has the biggest effect on how fast a pendulum swings?

The swing rate, or frequency, of the pendulum is determined by its length. The longer the pendulum, whether it is a string, metal rod or wire, the slower the pendulum swings. Conversely the shorter the pendulum the faster the swing rate.

## What is the purpose of a pendulum lab?

The purpose of this lab is to measure the period of a simple pendulum, and experimentally determine the relationship between the period T and the length L of a pendulum. You will also begin to learn how to find, investigate, and understand major sources of uncertainty and error in measured and calculated quantities.

## What are the drawbacks of simple pendulum?

The drawbacks of simple pendulum are as follows: a) The simple pendulum can’t have a weightless, heavy point mass bob with inextensible string as we assumed. b) The motion of the bob is not strictly linear. c) The resistance and buoyancy of air affects the motion of the bob which is supposed to be negligible.

## Does air resistance slow down a pendulum?

Air resistance is the number 1 culprit of slowing down a pendulum, when friction is between the string and pulley is 0. It will stop it, this is because with each swing the pendulum comes into contact with air molecules and the initial force (push) or positive force (gravity) is dissipated.

## How do you find the force of a pendulum?

This force is a function of the earth’s constant acceleration due to gravity, the pendulum bob’s mass and the angle between the pendulum and the vertical. Specifically, the force equals the mass times gravity times the sine of that angle – (F = mg sinθ).

## What is the acceleration at the bottom of a pendulum?

the concept of centripetal force and centripetal acceleration for a body undergoing uniform circular motion. The actual demonstration will subsequently prove to students, quantitatively, that the acceleration of the pendulum at the bottom of its swing is 2g, regardless of the mass and length of the pendulum used.

## Is acceleration zero at the bottom of a pendulum?

For a pendulum, the acceleration depends on both the position and the velocity. In the case of a pendulum that is “at the mean position” (directly below the pivot point), the acceleration is zero if and only if the pendulum is at rest (i.e., just hanging there).