• 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. 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.

  2. 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.

  1. Suspension Bridges. this extended essay is an investigation to study the variation in tension ...

    � 0.007 38.5 33 0.7523 � 0.008 36.7 0.7100 � 0.007 66.3 38.5 0.7025 � 0.007 41.5 0.6649 � 0.006 84.3 38.1 0.6415 � 0.006 41.2 0.6017 � 0.006 101 34.5 0.5632 � 0.005 38 0.5170 � 0.005 117 27.9 0.4455 � 0.004 32 0.3917 � 0.004 126 23.1 0.3274

  2. 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

  1. Verification of the earth's gravitational field strength

    Random errors such as reaction time in the stopwatch, reading of the rulers may have been inaccurate, keeping the angle the same was very hard and we might have had a parallax error when trying to keep the two strings parallel to each other.

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

    Investigate if the period is dependant of the length of a pendulum. Choose 5 lengths (e.g 100, 80, 60, 40 and 20cm) of string and make sure each type is identical in material and quality. 3) For each length, swing the pendulum bob several (preferably 45or so)

  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

    all other masses in the Universe given by F=Gm1m2/r2 Gravitational field strength is the gravitational force exerted per unit mass. g=F/m, g=GM/r2 6.2: Electric force and field: There are two types of electric charge: positive and negative. The Law of Conservation of Charge: In a closed system, the amount of

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