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

How does length affect the time period of the pendulum?

Extracts from this document...



Factor- Length

How does length affect the time period of the pendulum

Tarun Sridhar 10B

Physics Practical:-

Factor: Length of string holding the bob

Research question: - To find out if the length of the string holding the bob affects the gravitational force against the bob, i.e. the time period.        

Hypothesis: - I think that the increase in the length of the string would result in the increase of the time period (time taken for one oscillation), Because The pendulum holding the longer string should take more time because it has a long way from starting to end point, whereas the pendulum with the short string would have a lesser distance to travel the length of the string is directly proportional to the time period, and the

...read more.


StringBobStop watchPendulum standRubber split corks to hold string


  1. First get all the materials needed
  2. Then connect the string the rubber holder
  3. Connect it  to the pendulum stand
  4. Take out the string, which is put through the rubber and adjust the length.
  5. Record the time taken for 10 oscillations for different lengths



...read more.


Value of g (acceleration due to gravity) from the above relation we can derive a formula for time period

This equation shows us the relation between time period and length in depth, and the formula can be tested, and using this formula, just substituting in the values would give you the needed value, for e.g. substituting values for G and pie and length we can find the time period.


This experiment was successful and I think I could have done better if there was more time so that I could have taken more records for my data which would have made my results more accurate

There were some human errors which were made during the experiment, for E.G. the length of the string measured by the ruler and then stuck between the rubber corks may not be so accurate and also the error made when we use the stop watch

...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 a factor which can affect the period of a pendulum.

    3 star(s)

    When plotted on the graph, the last result does not have as big a difference with the previous result than that of all other results. These inaccurate results and one anomalous result acquired in the experiment are, most likely, due to human error.

  2. Marked by a teacher

    Investigating how the Length of a Pendulum affects its Period

    3 star(s)

    The pendulum must be set up away from other people as it could hit them and hurt them. Also secure the stand with some G- clamps to make sure it doesn't fall on you or anybody else. My prediction is that as you increase the length of the string the period too will go up.

  1. In this experiment I aim to find out how the force and mass affect ...

    One of these factors was the runway being curved due to its own weight, although not significantly causing an error in the results, it still does contribute to the overall result not being accurate to three significant. Another factor is the speed at which the trolley passes the light gate at as friction increases with speed.

  2. The determination of the acceleration due to gravity at the surface of the earth, ...

    Once all the results have been obtained, they need processing. Convert the readings, which have been recorded in minutes and seconds, into seconds by multiplying the minutes (number before the decimal place) by 60 and then adding the seconds recorded.

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

    Results: Length of string (cm) Period (secs) 50 7.2 8.1 6.45 40 6.25 6.6 6.4 30 5.6 5.2 6.15 20 4.55 4.5 4.6 10 2.95 3.25 3.0 I took three readings of each value and took an average for each concentration. I then divided by 5 to get the average reading for one oscillation.

  2. Strength of a string practical investigation

    different equipment and the set up would not be exactly the same as it would not be the original equipment set up in their original positions. To overcome this problem in my real experiment then I will use 500g masses instead of 200g masses.

  1. What affects the time period of a pendulum.

    These two formulae then give us the formula for a period, this is Where L = length of string from pivot to bob g = acceleration due to gravity T = time of period. This tells me that there are only two variables, that I have direct control over, that can effect the period of the bob.

  2. Physics Pendulum Practical. How does the time period vary with length and what is ...

    This was hard to do but we tried our best in keeping it constant. Independent variables: 1. Length of string: For the string length, we took a wide range of 40-140cm (every 10 cm) and therefore we did trials with 11 different string lengths.

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