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

Research question: How does the time (T) it takes to complete a swing of a pendulum depend on the length of the string (x)?

Extracts from this document...


Vivien 12M1

An Investigation on Pendulum                                                                             20th Jan, 2010


Simple harmonic motion (SHM) occurs commonly. A good example is a swing oscillating at small angles, like pendulum swinging. In this case, the vertical motion can be neglected and the displacement can simply be described by the horizontal component x.

Research question:

How does the time (T) it takes to complete a swing of a pendulum depend on the length of the string (x)?

Independent variable: The length of the string of the bob

Dependent variable: Period of a swing of the pendulum

Control variable:

...read more.


In order to minimize the error, we chose to use the data-logger in which electronic is always more accurate than human hands. But we still use a timer and time by hand to do a double check.

Controlling the control variables:

We use the same string, the same bob (same pendulum) throughout the whole experiment so as to keep the quality and condition of the pendulum are the same. As well as we constructed the experiment indoor without windows or doors open, so

...read more.
































Graph obtained:


From the graph, by T=2(π^2)√(x/g), we can see, the longer the string, the longer time the pendulum needs to complete a period.

...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

    In order to keep this constant, I will pull the left side of the bar back 90 degrees from its original position so it is perpendicular when I am facing my apparatus. Although this does not affect the period or frequency it is for the ease of recording my results.

  2. Physics Wave revision question

    I B. II C. III D. IV (1) 18. Diagram 1 below shows the displacement of part of a medium through which a wave is travelling at time t = 0. Diagram 2 shows the displacement at a later time t = 4.0 s in which the wave has moved forward 10 cm.

  1. The Affect of Mass on the Time It Takes an Object To Fall

    The helicopter was released from rest and simultaneously we began to record time with the stopwatch. The stopwatch was stopped as soon as the helicopter touched the floor, 184cm away from the start point. This process was repeated four more times for the other trials for data point one.

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

    between two supports with: - * The point of application of force * Length of the string tied between the supports. The first part involves studying the variation in tension force exerted as force is applied on different points across the tied string.

  1. How does the number of holes in a plastic cup affect the time it ...

    Place the cup on the hole of the ring stand. The ring stand should be in the sink.

  2. Question: Does the length of the string holding the pendulum in mid-air affect the ...

    Using a Ruler (cm side) measure 20cm from the Pendulum Clamp downwards and move the bottom of the string loop, up or down till it meets 20cm from the Pendulum clamp. 4. Using a Ruler (cm side) measure 15cm away from the rest position and pull and hold the pendulum (hanging in the loop of the string)

  1. Telescopes - science research project.

    It will greatly elaborate astrophysical information, permitting the in detail study of subjects containing planets of other stars, the initial objects of the complete universe, huge holes of black color, and the circulation and nature of the murky matter and energy that have dominance over the universe.

  2. Science Research Project - The Forces in Avalanches

    Talking about the resisting forces, there are five important factors contributing to frictional resistance which are: R1: Sliding friction between the avalanche and the underlying snow or ground. R2: Internal dynamic shear resistance due to collisions and momentum exchange between particles and blocks of snow.

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