• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6

Investigating the period of oscillation on a pendulum

Extracts from this document...

Introduction

Investigating the period of oscillation on a pendulum Aim - To investigate how the period of a pendulum varies with length. Background Knowledge - A pendulum consists of a bob attached by a string to a pivot point. As the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion. There are many different types of pendulums but the most common are found in clocks, they are actually more common than people think as they are used in toys and novelty items. There are many different terms associated with pendulums the period is the calculated time of one oscillation. Frequency is the number of oscillations per second. Amplitude is the linear distance of the movement of a pendulum from the centre point to one side, as shown below. By studying this, we conducted a small experiment and learnt that the pendulum's frequency is not affected by the distance the bob is pulled back before release. ...read more.

Middle

Accuracy - To try and keep our results as accurate as possible we carried out the experiment twice at each interval, we used a ruler to measure the length of spring and also kept the bob the same mass. Timing it for twenty oscillations and then dividing it by twenty also improved accuracy. Safety - To try and keep the experiment as safe we took care when dropping the bob as it could strike someone an injure them and also ensures that retort stand was clamped firmly to the desk to prevent it for tipping over. Strategy for dealing with results - Here is how I will record my results. Length of string (cm) Time for 20 oscillations (s) Period (s) 1st 2nd Average Period (s) Length of string (cm) Length of string (cm) VLength of string (cm) Period (s) Period (s) VLength if string (cm) Results - Here are my results. ...read more.

Conclusion

I can safely say that from looking at my result table and my graph that my prediction is in fact correct. I can see that in the two graphs I have done that the period is directly proportional to the "Vlength", and in the other graph I can see that the period is not directly proportional to the "length". I however did find one anomaly in my "Vlength" graph this was probably due to; the length of the string not being exact, the air resistance might have changed if the amplitudes changes, a human error when timing, the pendulum not swinging in a straight line. The experiment could have been improved my taking more readings at each interval, taking more care when timing and letting the complete thirty oscillations and the divide by thirty to get the period. Again from comparing results with my classmates I can see that there is a great similarity between each other's results and that I strongly say that the period of a pendulum varies with length. Declan Gervin 11A3 Page 1 4/28/2007 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Forces and Motion section.

Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

Related GCSE Forces and Motion essays

1. Period of Oscillation of a Simple Pendulum

The difference between them was minimal. This shows that my methods were highly accurate in achieving those reults. However, there could have been a degree of chance in getting the timings so accurate. I did not expect these results to be so accurate. I did not like my angle of release results or my mass results.

2. Damped Oscillation.

Hence I can replace by x. The equation will looks like this: or . From this equation, we know that . In this particular coursework the length of the string I use is 1 meter long, hence where g is 9.8. The damped term in fact is the resistance.

1. This investigation is associated with the bounce of a squash ball. I will be ...

The average width of each strip is measured before it is pulled apart at a rate of 180-220mm per minute until the seam breaks. The force at the point of breakage is divided by the average width of the strip to give a 'force per millimetre', which must be at least 6N/mm.

2. Physics Coursework: To investigate the Oscillations of a mass on a spring

So basically, I am saying that the amplitude will affect the time of oscillations in a given time. As the amplitude goes up, the time will decrease. I think the mass will speed up more if it is let go at higher amplitude.

1. Investigating pendulums.

column by ten is because the lengths of the string are in centimetres and gravity is in metres per second and the units need to be kept the same. Quantitative prediction I found that in the predicted results I could estimate the period of a pendulum of any given length if I had the results for one given length's period.

2. In this Coursework, we were given the task of investigating some factors which affect ...

2- Initially, I thought that there will be a proportional relationship between length of string & period because when looking at the two situations above, we find that when the radius - length of string - is doubled, the arc also doubles in length.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to