Table of Contents

- 1 Why is it important to measure the time for several oscillations when determining the period?
- 2 How does taking more than one oscillation improve your measurement of time period?
- 3 What are the factors affecting the time period of a simple pendulum?
- 4 What is the conclusion of simple pendulum experiment?
- 5 What factors affect pendulum period?
- 6 How can you measure the time period of a pendulum?
- 7 Why are accuracy and precision important in measurement?

## Why is it important to measure the time for several oscillations when determining the period?

Also, measuring period over a longer time frame (and hence over multiple oscillations) will increase the accuracy since the human error will be a smaller fraction of the recorded time. It can also be useful to use a pin or tag to act as a fiduciary marker showing the equilibrium position.

**Why do we take 20 oscillations while measuring time period?**

In order to minimize the uncertainty in the period, we measured the time for the pendulum to make 20 oscillations, and divided that time by 20.

### How does taking more than one oscillation improve your measurement of time period?

(i) To measure the time period of a simple pendulum, the bob is slightly displaced from its mean position and is then released. To find the time period, the time for the number of oscillations more than 1 is noted because the least count of stopwatch is either 1 s or 0.5 s.

**What precautions should be taken during simple pendulum experiment?**

What precautions should be taken during simple pendulum…

- The bob of pendulum should be displaced with a small angle.
- The amplitude of the oscillation of a simple pendulum should be small.
- Fans should be switched off to reduce the air resistance.

## What are the factors affecting the time period of a simple pendulum?

The mass and angle are the only factors that affect the period of a pendulum. b. The mass, the angle and the length are the three variables affecting the period.

**What is the length of a pendulum with a period of 1 second?**

Answer: A simple pendulum with a period of 1 second will have a length of 0.25 meters or 25 centimeters.

### What is the conclusion of simple pendulum experiment?

The surprising conclusion – the pendulum traverses a longer distance in a shorter time, than in a shorter distance, and its period is shorter. There are a number of reasons why Galileo thought that the period remains constant. One factor which Galileo failed to consider is friction.

**What is the time period formula?**

The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.

## What factors affect pendulum period?

The mass and angle are the only factors that affect the period of a pendulum.

**What is the period of oscillation formula?**

each complete oscillation, called the period, is constant. The formula for the period T of a pendulum is T = 2π Square root of√L/g, where L is the length of the pendulum and g is the acceleration due to gravity.

### How can you measure the time period of a pendulum?

If you tried recording all of the points and determining the period, you’d get the same result — either you take the time between zero crossings of the position, or you take the time between peaks.

**Why is the time of an oscillation measured?**

It is assumed that the time for a number of complete oscillations will be measured to enable one to find a more accurate value of the period than just measuring the time of just one complete oscillation.

## Why are accuracy and precision important in measurement?

The problem here is that the result of every measurement by any measuring instrument contains some uncertainty. This uncertainty is referred to as Error. Accuracy and precision are two important factors to consider while taking measurements. Both these terms reflect how close a measurement is to a known or accepted value.

**When do you think the pendulum is debatable?**

The reason is that it is (supposedly) marginally easier to judge when the pendulum sweeps past a point when it is moving quickly than when it is moving slowly. In think the point is debatable if you are judging it by eye and manually triggering a stop watch, as your own reaction time comes into play.