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

Investigation To Find the Speed Of Sound.

Extracts from this document...

Introduction

*Joanne Hua*11Jupiter*Mr. Fullman*Physics Coursework*Speed Of Sound*Triple Award Science*

Investigation To Find the Speed Of Sound

Analysis

According to the graph, an increase in the distance causes an increase in the time.  This shows that they are directly proportional to each other.  There is a very strong trend in the graph, which shows a strong positive correlation.  I can tell this because I have drawn a line of best fit.  There don’t appear to be any major anomalies since all the points are either directly on the line or close to the line of best fit.  This shows that the results are relatively reliable.  However, the points that are not directly on the line of best fit could be

...read more.

Middle

                = 286m/s (to 3 s.f.)

I have worked out from the graph that the speed of sound through air is 286m/s (to 3 s.f).  Even though this does not match the general speed of sound through air, it is quite close.  The inaccuracies could be due to inaccuracy when hand-drawing the graph or when conducting the experiment.  

There is sufficient evidence to prove that the experiment was conducted correctly, (though slightly inaccurately) and that the results are reliable.

Evaluation:  

From the experiment, I was able to obtain relatively accurate results from which I was able to construct an accurate and informative graph.  I feel that the amount of results that I gathered was sufficient for me to come to a reliable conclusion.  The results are of a good quality since most of the points are either near or on the actual best fit line.

...read more.

Conclusion

Other sounds around the room and outside the room could affect the experiment so any background noise should be kept to a minimum since the QED could pick these up.

The graph was plotted with the average results of two experiments so this would also affect the overall result.  Instead of just doing two experiments to average, more experiments should be done before averaging it out.  This is to give way for any inaccuracies and ensure a larger chance of a more accurate result.

If the experiment was repeated, I would solve the problems I mentioned earlier.  I would also repeat the experiment more times to retrieve more accurate results, although I feel that the results I gained were already relatively accurate.  However, to obtain a result even closer to the general speed of sound, all of the precautions above should be put into action.

- Page  of  -

...read more.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion 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 GCSE Forces and Motion essays

  1. Trolley Speed

    My prediction of kinetic energy; the kinetic energy of an object is directly proportional to its speed was correct. 16cm the speed was 0.84 m/s 32cm the speed was 1.42m/s 16cm the kinetic was 0.28 J 16cm the kinetic energy was 0.81 J You can see that if you divide

  2. In this experiment I aim to find out how the force and mass affect ...

    Although the ticker timer is accurate, it presents a higher possibility for error when measuring the distance between the dots on the ticker tape, plus the accuracy of the measurements could not be as accurate as that of the CBL 2 data logger.

  1. Squash Ball and Temperature Investigation

    thus increasing the height at which it bounces back up at. Balls with more air capacity will bounce higher than those will less air capacity. Therefore, to keep the testing fair, the same ball will be used to ensure it has the same air capacity all throughout the testing.

  2. Approximate Stopping Distances

    the driver gets older they tend to decrease speed which they drive at. Illnesses can affect safe driving, there are various illnesses that can be dangerous for drivers these include the following: * Blackouts * Vision Problems * Epilepsy * Heart disease * Sleep Disorders * Diabetes * Psychiatric Disorders

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