• 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)

    Lead bob with string * Metre rule * Stop watch * Paper * Scales * G clamp The stand will be placed on the table and secured with a G-clamp, as it is a safety hazard. Then I will thread the string and bob through the cork and then clamp the cork in position.

  2. Marked by a teacher

    Additional Science - What affects the period of a pendulum?

    3 star(s)

    error, as an error could have been made when timing and the reaction of both the time keeper and the person dropping the ball bearing. Furthermore, an error could have been made when weighing the ball bearings, as the scales were slightly faulty this would have affected the accuracy of the weighing.

  1. Investigating the amazingness of theBouncing Ball!

    The same thermometer as before will of course be also within the water bath to measure the temperature. To ensure the ball is at the temperature desired when conducting the experiment the ball was left at these temperatures for at least half an hour.

  2. 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.

  1. Investigating factors which affect the period time of a simple pendulum.

    However, I have rounded up each time to the nearest second to give appropriate results. - The mass was measured using five10g masses, to ensure that the mass remained constant throughout the experiment. Results: Length of string (cm) Period (secs)

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

    if I push it out of my hand I should push it with the same force each time). I will also time the swings with the same stopwatch and stop it after 10 swings each time. I carried out some preliminary work at home before the investigation.

  1. What affects the time period of a pendulum.

    Mass of the bob (see note below) If we use different bobs there mass could be different. Make sure we use the same bob Angle Angle could be different due to human error Make sure we measure the angle accurately Gravity If we move to another area of the world,

  2. Squash Ball and Temperature Investigation

    For my experimenting, I will simply drop the ball perpendicular to the hard surface each time ensuring that this is the angle at which it is always dropped throughout the experiment. * Air Resistance As the squash ball moves through the air, the air in front of it experiences a

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