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

Simple Pendulum

Extracts from this document...


Physics Lab Report:

The Simple Pendulum

Done By: Izzat Sharif        

IBDP/11 (A)

Physics HL

Aim: - To measure the acceleration due to gravity by a simple pendulum

Hypothesis: - The period of an oscillating pendulum is given by the equation: T = 2π√L/g.  Where T is the period time of the pendulum, L is the length of the thread of the pendulum, and g is the gravitational acceleration.  The acceleration due to gravity can be calculated using this formula and by knowing both the time

...read more.






Data Processing: -

L= 0.2280 m, T1 =9.85 s, T2 =9.55 s, T3= 9.85 s

Tm = 9.85 + 9.55 + 9.85 / 3 = 9.75s

T = 9.75 / 10 = 0.975s

T2 = 0.9752 = 0.951s

Uncertainty of Tm = 0.01 + 0.01 + 0.01 = 0.03

Uncertainty of T = 0.03 / 9.75 x 0.975 = 0.003

Uncertainty of T2 = 2(0.003 / 0.975) x 0.950625 = 0.00585

Tm = 9.75s ± 0.03s

T = 0.975s ± 0.003s

T2 = 0.95100s ± 0.00585s2
g = 4π² x 0.2280 / 9.75 = 9.469ms

Table 2: - Shows the average values of the period and the period of one oscillation

...read more.




Gradient = Y2 – Y1 / X2 – X1

               = 3.9100 – 0.95100 / 1.977 – 0.975

               = 2.959 / 1.002

               = 2.953

Conclusion and Evaluation: -

The gravitational energy that was found is 9.212 ms-2 ± 0.740 ms-2 there were many errors that could have occurred during this experiment starting with human errors. When turning on the stopwatch it might be too late or to early so we need a more complex structure that lets a stopwatch start automatically when we let the pendulum move.  Also when the oscillations are finished we don’t stop them automatically, and other systematic errors like the calibration of the rules and all of this makes large sources of errors making our work not accurate    

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

    This last trend line has a formula of y=0.114x2 -1.238x+2.016 with correlation of 0.999. Nevertheless, the other aim of my investigation was to look at the frequency and its relation with distance l enclosed between the two strings. Below is the table that I will be using in my graph.

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

    = ccuracya gePercenta However when corrected for the systematic error that led to all the data being skewed, and as result not passing through the origin, the value of free fall determined was only 2.24% higher than the actual value and improves the accuracy to 97.76% as shown below.

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

    By modifying the equation stated above as follows: , the value of g can be found out using a simple equation. The variables in the experiment are 'g' which is acceleration due to gravity which is our measured variable; 'T' is time period which is the dependent variable which we

  2. Period of a Pendulum

    An electric scale was zeroed and the bob was weighed (+ 0.01g). 3. The bob is measured to an amplitude of 6cm 4. Simultaneously, the bob is released and the stopwatch started 5. After twenty swings has passed, the timer was stopped as well as the bob.

  1. Verification of the earth's gravitational field strength

    But before we can do that we have to square T. When T is squared we find the constant by dividing T by L. When the constant is found we divide 4?2 by constant to find g. E.g. for 0,5m -->T2=2.24--> K (constant)=T2/L=2.24/0.5= 4.48 therefore, G=4?2/4.48= 8.82 Table showing the values of g obtained by our experiment.

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

    Set up the simple pendulum. Check to make sure the string is tightly tied around the lab stand and does not slide back and forth. Choose an angle, preferably not too big, that will remain constant throughout the experiment and will be the angle you always release the pendulum from.

  1. Investigating the Oscillations of an Obstructed Pendulum

    The graph that follows on the next page shows the relationship between dt, plotted on the x-axis and ?t?, plotted on the y-axis.

  2. HL Physics Revision Notes

    charge is constant Conductors: A material that allows the flow of charge All metals Insulators: A material which charge cannot flow through Plastics Rubber Glass Note: There are no perfect insulators Coulomb?s Law: The electric force between two point charges is proportional to the product of their charges and inversely

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