• 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)

    The higher that something is the more gravitational potential energy that it has, and so using that principle the shorter the string the more potential energy it will have. When the ball gets released the gravitational potential energy is converted to kinetic energy and so making the pendulum fall.

  2. Marked by a teacher

    Additional Science - What affects the period of a pendulum?

    3 star(s)

    18.98g 1.16 secs 1.03 secs 1.09 secs 1.00 secs 1.03 secs 1.10 secs 1.07 secs IRON 40.85g 1.09 secs 1.04 secs 1.12 secs 1.03 secs 1.10 secs 1.09 secs 1.07 secs Looking at the results for this preliminary, I do not think these results are reliable.

  1. To investigate the time taken for the pendulum to oscillate for a time period.

    This allows us to get a good range and the intervals are close enough together to give an obvious trend. Problems: As we did the experiment, unfortunately things didn't go as they were planned. The main problem was that we were unable to securely hold the pendulum at the intended

  2. Squash Ball and Temperature Investigation

    rise in air pressure and pushes the ball in the direction opposite its motion. While there are various other changes in air pressure around the ball's surface, this rising pressure in front of the ball remains largely unbalanced and it slows the ball down.

  1. 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.

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

    This gives us the period of 10 complete oscillations. This is recorded on the table. 5- We repeat steps 1-4 three times and calculate the average period of 10 oscillations. This is recorded on the table. 6- We divide the average period of the 10 oscillations by 10 to find the period of one oscillation.

  1. Strength of a string practical investigation

    the end of the experiment it is -3 degrees then how the strings in these two extremes will undermine the experiment and all results and findings will be invalid. Period of experiment overview: My experiment developed over the time given to me in lessons.

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

    will be shorter than when it was longer. I think that this will happen because in the formula T=2?V(L /G) length is divided by gravity. This means that changing the length will change the time. I also predict that the length of the string will be directly proportional to the square of the time taken to do one complete swing.

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