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

Aim: To investigate the factors that affect the period of oscillation of a simple pendulum.

Extracts from this document...

Introduction

The Simple Pendulum Abstract: In this experiment, the factors that affect the period of oscillation of a simple pendulum were determined and tested. Most of the factors that affect the accuracy of our results were controlled. From these testings, we concluded that neither the mass of bob nor the amplitude of the pendulum doesn't effect on the period of motion but only the change of string lengths. Aim: To investigate the factors that affect the period of oscillation of a simple pendulum. Hypothesis: The period of oscillation will not be affected by the neither the mass nor the amplitude of the pendulum. The period only fluctuates when there is a change in length or gravitational force. Equipment: 1 � Retort stand and clamp 1 � Pendulum bobs set (mass varying from 100 to 350) 1 � Stopwatch 1 � Metre ruler 1 � Nylon string Background Information: A simple pendulum can be accurately described as a mass that is suspended by a massless string from a specific some point about which it is allowed to swing back and forth in a place. ...read more.

Middle

Another observer used a stopwatch to measure the time for 20 complete swings. One swing was the time the bob takes to go out from its release position and return. Repeat this procedure using three other bobs of different masses. In each case we used the same length of string and amplitude. 3. The effect on the period of the pendulum when the amplitude is altered and the mass was determined. The lengths of string were kept constant. Time was measured for 20 complete swings when the bob is given amplitude of 4 cm, 6 cm, 8 cm, and 10 cm respectively. 4. The effect on the period of the pendulum when the length of string is altered was determined. The mass of the bob constant, and give the bob the same amplitude of 6 cm in each case are kept constant, but the length of the string changed progressively so that results are obtained for lengths of 10 cm, 20 cm, 30 cm, and 40 cm. Results: Table 1: The effect of the mass of the bob in the period of motion Length = 20 cm, amplitude = 6 cm Mass of bob Time for 20 swings Period of motion (s) ...read more.

Conclusion

One was systematic error and the other one was random error. Systematic error included the accuracy of stop watch or the accuracy of a metre ruler. Random error like rough estimation of data, human errors, air friction and equipment defaults. In future, to deal with these errors we should use more precise and calibrated instruments to measure time and maybe use a tape measure rather than a metre rule. A random error like rough estimation needs to be more decimal places. A human error like calibration needs to be focused on. Other stuff like air friction needs to be reduced to minimum when it is being experimented. And also the equipment defaults can be prevented by repairing or replacing equipment now and then. In future, we also would need more time to be accurate about the graphs. This will be done by experimenting 5 trials or more to be more precise. Conclusion: The aim was to investigate what factors affected the period of oscillation. The results and the experimentation led us to conclude that the length of the string is factor that affects the period of oscillation. This supports and proves the hypothesis stated above. Other two did not have an effect on the period of oscillation. ...read more.

The above preview is unformatted text

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. Finding the Spring Constant

    and the experimental value are quite close. However, there are errors and omissions present which will be further discussed in the evaluation phase. Evaluation: Weaknesses: The spring wasn't really that well clamped to the standing clamp and the loose ends might have caused the spring constant value to be far greater that what it is supposed to be.

  2. Analyzing Uniform Circular Motion

    Slope = Slope = (relative) Slope = 0.0491 � 0.0006 Hz2m (absolute) The theoretical slope is also different by a bit, showing that there is a high percent error which will be evaluated in the conclusion. 3. Manipulating Hanging Mass This section represents the relationship between frequency and the hanging mass (which, when manipulated, provides a change in the force of the system).

  1. In this extended essay, I will be investigating projectile motion via studying the movement ...

    The following provides an explanation: * There is friction between the metal ball and the wooden board, when launching the metal ball, it rotates along the wooden board, so part of the elastic potential energy in the spring is converted into work done against friction and not all of the

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

    * To ensure that the length, shape, mass and weight are kept constant and controlled I will use the same metal bar all throughout my investigation and for each trial. Thus the metal bar I will be using will be of 17 cm long, 14.1 grams and of the shape of a thin and long cylinder.

  1. Simple pendulum lab. In this experiment, the length of the string will be ...

    = 12.7 % Error Conclusion Overall, the experiment was carried out with minimum errors and was followed according to the given procedure. There were eight data points with three trials each. The investigation was related to the determination of one factor that affects the motion of a simple pendulum followed by the determination of the value of gravity.

  2. Physics IA -motion

    further add to the possible error, may have slowed down before the 10m mark in order not to hit the velocity recorder. This is why a distance of 5m was used instead of 10m. As a result of not travelling a constant velocity through the 10 metres, the person recording

  1. Lab Report - obtain the frequency of the simple pendulum and to analyze the ...

    Formula used: T = 2pi (L/g) ^1/2 Effect of Change in Length on the Frequency: As we know that frequency is reciprocal of the time period, so formula for frequency is: f = 1/2pi (g/L) ^1/2 We can see that frequency is inversely proportional to the length of the string so if we increase the length

  2. Investigating the Oscillations of an Obstructed Pendulum

    we must know that the time period = Average amount of time taken for 20 oscillation TAVG 20 TAVG has an uncertainty of ±0.05 seconds. Now, when we divide TAVG by 20, the following equation must be used to find the uncertainty: Δ = uncertainty x = TAVG y =

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