• 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...


GCSE Practical Assessment – The Pendulum


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


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.


        One complete oscillation


 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.



  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.


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


Length of pendulum (cm2)

Time for 5 swings

Time for 10 swings

Average for 1 swing (5)

Average for 1 swing (10)


























...read more.



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)

    The results could have been affected by reaction time as well, from the person timing the experiment. Preliminary Test #2: In this preliminary, I am investigating how changing the material and the weight of the ball bearing can affect the period.

  1. Squash Ball and Temperature Investigation

    To have fairness in the testing of balls, I will use the same ball each time for any kind of testing ensuring that the material of the ball is not different giving accurate, reliable results. To be very fair, a different ball made of the same material should be used

  2. Approximate Stopping Distances

    for braking distances, because if the brakes are old and worn out they will not perform as good as the brakes on a brand new car. Brand new brakes will perform better than old ones because as technology has developed there are modern materials and equipment for these brakes to be made for top quality and high standard braking.

  1. What affects the time period of a pendulum.

    We could not measure very accurately either. Many times when a person measures it again, we found that it was often different by 1-3mm. So we will be comparing all results by showing the true time mathematically by the sum: T= 2?

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

    OBSERVATION RESULTS: The following table includes my results for the experiment, where length was the independent variable: Length of String (M) Period of 10 complete Oscillations (s) Average of 10 T T 2 T T1 T2 T3 0.1 6.5 6.5 6.5 6.5 0.65 0.42 0.2 8.9 9 9.1 9 0.9

  1. Investigating the amazingness of theBouncing Ball!

    The ball will hit the wooden surface of the level floor which must be at 20-25�c. A Dr Daq system measures the time between each bounce by the sound produced by the ball. The Dr Daq microphone will pick up these sounds inducing a voltage which will produce a voltage

  2. Investigating pendulums.

    I will conduct this experiment by using the following equipment: * String * Plasticine * Retort stand * Boss head * Clamp * Protractor * Metre ruler * Stopwatch 1. I will attach the string to the clamp and measure the length of it to the selected length and attach the lump of Plasticine to the end.

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