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

Determining gravity from a simple pendulum

Extracts from this document...


Determining the value of gravity due to acceleration from simple pendulum motion

Raw data:

Length of string (cm)(+/- 0.01)

Time for 20 oscillations (s)

Average time (s)

...read more.






Average time(s) (+/- 0.1)

Time period (s) (+/- 0.1)

Acceleration due to gravity (ms-2)



9.40 +/- 1 ms-2



9.52 +/- 2 ms-2



9.30 +/- 4 ms-2



9.52 +/- 8 ms-2

Data processing:

 Average time: (Trial 1 + Trial 2 + Trial 3)/3                    eg: (40.77+41.00+41.07)/3 = 40.95

Uncertainty of average: [(Highest value)-(lowest value)]/2          eg: [(41.07)-(40.77)]/2 = +/-0.15 s

...read more.



*Graph number 2: The period of a simple pendulum is directly proportional to the square root of length of the pendulum, thus we get a more or less straight line.

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics 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 International Baccalaureate Physics essays

  1. Determining acceleration of free fall by of a simple pendulum.

    18.16 1.816 3.30 5 0.75 17.66 1.766 3.12 6 0.70 17.03 1.703 2.90 7 0.65 16.53 1.653 2.73 I then plotted a graph of time2 against length using the values shown in the table above using graphing software.

  2. Investigate the factors affecting the period of a double string pendulum

    ?0.21 s on the y-axis, there are three different trend lines that could have be drawn one with the error of + 0.21 seconds, a trend line with an error of -0.21 seconds and finally a polynomial trend line with the data points shown on the graph.

  1. Pendulum work out the value of acceleration due to gravity (g), by using ...

    > Theory- The basic theory behind the experiment is that the value of the time period taken by the pendulum in one oscillation is influenced by the length of the string which is supporting the pendulum and the value of acceleration due to gravity.

  2. investigate how the length factor of a pendulum string will affect the time period ...

    1.8 1.8 0% 3.2 1.0 m 2.0 2.0 0% 4 Also in the table above I have found the values for T squared, or the period squared. This was done because the theoretical formula shows that there should be a linear relationship between the length and the period squared.

  1. Period of a Pendulum

    The amplitude is measured to 6,8,10cm and steps 4-5 are repeated three times. 10. The length of the pendulum was shortened to 15cm and steps 3-5 are repeated 11. Steps 3-5 are repeated using 20, 26.5 and 33cm as the length of the pendulum 12.

  2. Investigating the Oscillations of an Obstructed Pendulum

    With the gradient in hand, the value of - ?2g was equated to -0.8645, the gradient of the linear curve. However, when this equation was rearranged, ?g? was found to be 11.42ms-2, not 9.81ms-2 as is the literature value[1]. This is a difference of 1.61ms-2, which is a very large

  1. HL Physics Revision Notes

    The relation between temperature and the peak wavelength, the wavelength at which most of the energy is emitted is given by Wien?s law. Wien?s law = (wavelength) T = 2.90x10-3mK The Earth?s surface emits infrared radiation because the earth?s surface is at a temperature of 288K (wavelength)

  2. To find the value of acceleration due to gravity by recording number of oscillations ...

    An average of the time values(in s) for each reading was taken 2. The calculation for the average time for string of length 20 cm is shown below: Calculation 2 Averaging the uncertainties: Therefore, our final answer stands as: 9.5 ± 0.5s Rest of the calculations have been noted in

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