• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigate how the period of a pendulum depends on its length.

Extracts from this document...

Introduction

GCSE Practical Assessment – The Pendulum

Aim

To investigate how the period of a pendulum depends on its length.

Plan

Well pendulums have been around for a long time and have been the centre of timing devices. An example of this are the Grandfather Clocks, their important feature being that they are isochronous.

image00.pngimage01.png

        One complete oscillation

image02.pngimage02.png

 This basically means that the pendulum takes the same time for every swing. There are many factors that may affect the time for one complete swing of the pendulum; this is called the period of the pendulum. These factors could include the length of the pendulum and the weight of the pendulum. This information will help me decide how many results to take in my experiment.

...read more.

Middle

Safety

  1. Make sure whilst the pendulum is swinging that no one is near it.
  2. Clear the worktop before you start the experiment.
  3. Keep the stand well away from the edge of the table.

Prediction

I predict that the longer the length of the pendulum the greater time the period.

Results

Length of pendulum (cm2)

Time for 5 swings

Time for 10 swings

Average for 1 swing (5)

Average for 1 swing (10)

10

3.80

8.05

0.76

0.805

20

5.79

10.41

1.158

1.041

30

6.72

12.44

1.344

1.244

40

7.62

15.06

1.524

1.506

50

8.31

16.34

1.662

1.634

...read more.

Conclusion

Evaluation

On the whole the experiment went well and I ended up with a set of accurate results. The experiment helped me find how the length of the pendulum affects its period which was my main aim. I believe my results are very reliable as they agree with my prediction and I repeated the results once again. I took enough results to support my conclusions and if I was to do the experiment I would probably take even more sets of results as it would make the results even more accurate. I could possibly extend the investigation by using different weights of the plaster cine to see if It affects the period of the pendulum also. Bu overall the investigation was accurate and very interesting.

...read more.

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

See related essaysSee related essays

Related GCSE Forces and Motion essays

  1. Marked by a teacher

    Investigating how the Length of a Pendulum affects its Period

    3 star(s)

    I plan to use a total range across the starting and finishing length along the string of 90 cm. This will be spread across 7 different lengths between the values of 10cm and 100cm. I will time the period 10cm then will make the string 15cm longer before timing the period again.

  2. Marked by a teacher

    Additional Science - What affects the period of a pendulum?

    3 star(s)

    These factors are kept the same to ensure that nothing other than the changing of ball bearings will affect the results. METHOD: 1- Weigh the different ball bearings using the electric scales and record the material and weight. 2- Measure as accurately as possible 30cm of string, not forgetting to

  1. Squash Ball and Temperature Investigation

    Repeat the entire experiment again (i.e. heating the ball at 300C and then dropping it) for heights 40cm, 50cm, 60cm etc going up in 10 cm's till you reach the height of 1 metre. 5. Arrange the collected data from the experiments in a table so that they can

  2. Investigating the amazingness of theBouncing Ball!

    against time graph on the picoscope programme on the laptop.The The Dr Daq system will be stopped after each experiment when a good number of sound readings have been produced. Then using my cusor and lining up a line at the very beging of each peak, the computer will calculate the time difference between each bounce.

  1. Strength of a string practical investigation

    The yield stress is the amount of stress it takes for a material to yield, this would be when the string gives before it breaks/snaps, at these points it is permanently deformed and cannot return to its original state (also called elastic limit).

  2. An Investigation to discover whether the string length of a pendulum affects the pendulum ...

    I have predicted this because of the formula. There is a square root sign on the right hand side of the equation, which makes me think that you must square the time. To make this investigation fair, I am going to only change one input variable at a time.

  1. What affects the time period of a pendulum.

    What will affect the accuracy of results? Fair Testing There are a few invariables mainly caused by human error that we should consider before conducting the experiment. These include:- Clamp, string, measuring equipment, stopwatch, person who does all the measuring and timing, weights, position where knot is tied, angle where it is released (amplitude).

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

    It will equal: 20 / 360 * ? * 4 = 0.7m The two situations prove that if the length of string (radius) increases, then the arc increases. i.e. the distance between A & B will increase. This will undoubtedly lead to an increase in the time it takes 1 complete oscillation to occur, and thus I could

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