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The Compound Pendulum

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  • Essay length: 1972 words
  • Submitted: 19/06/2008
  • Reviewed by: (?) k9markiii
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AS and A Level Fields & Forces

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The first 200 words of this essay...

The Compound Pendulum

Task:

* To confirm that a metre rule behaves as a compound pendulum when oscillating;

* To determine the acceleration due to gravity using a compound pendulum.

Planning:

Sources used in research of the above tasks are:

1. A Text-Book of Practical Physics - William Watson; page 129

2. Laboratory Physics - JH Avery & AWK Ingram; page 69

3. Intermediate Physics - CJ Smith; page 50

4. The Text-Book of General Physics - GR Noakes; page 394

5. Intermediate Mechanics - D Humphrey; page 60

6. Introduction to Physics for Scientists and Engineers (Second Edition) - Frederick J. Bueche; page 222

7. http://www.physics.mun.ca/~cdeacon/labs/simonfraser.pdf

8. http://hyperphysics.phy-astr.gsu.edu/hbase/pend.html

9. http://en.wikipedia.org/wiki/Acceleration_due_to_gravity

10. http://geophysics.ou.edu/solid_earth/notes/potential/igf.htm

11. http://www.gorissen.info/Pierre/maps/googleMapLocationv4.php

12. http://en.wikipedia.org/wiki/Reaction_time

Where direct quotation is made from a source, the source number is shown in superscript after the preceding italicised quote, e.g. 'quote' 4 .

The compound pendulum is defined as: 'a rigid body of any shape and internal structure which is free to turn about a fixed horizontal axis, the only external forces being those due to gravity

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Review of essay

Reviewed by: k9markiii

Rating: 5 star(s)

Response to the question

The candidate has not completed the work so has not answered the question. However, this is a great start. The explanation of theory is good, an important step that is often left until conclusions or sometimes omitted at A-level and should not be. The equation should definitely be in there but doesn't need each stage of rearranging showing, if you feel there is a need to show a proof it should be in an appendix. The method seemed reasonable with a clear understanding of how to limit sources of inaccuracies.

Level of analysis

The text has good, relevant physics throughout. It contains good use of references, though these are usually placed at the end of the report. There was no graph, uncertainties or final answer, which made the report less useful.

Quality of writing

The spelling, punctuation and grammar appear to be perfect or very close. It is pleasing to see good use of relevant scientific terms being used correctly.

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