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Experiment to investigate the blind spot

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Introduction

20th December 2002

Experiment to investigate the blind spot

Planning

  • I predict that the greater distance between the cross and the dot the further away it will disappear. I have made my hypothesis from the text book.
  • I intend to use a metre ruler, and a blind spot meter.
  • To make my test fair I am using the same metre ruler, the same metre and the same eye.
  • I believe that is metre ruler is very accurate and the metre is good but is made out of paper so is quite bendy. Also my focus and concentration could lapse so the experiment should have my full attention.
  • There are no safety measures in my experiment.
...read more.

Middle

Then a partner measured the distance between the bridge of my nose and the metre. I repeated the results a few times changing the distance between the cross and the dot and recorded my results in the table below.

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Conclusion

There is a pattern that, the greater the distance between the cross and dot, the greater the distance away from the bridge of the nose that the dot disappears.

Evaluation

I think that my result6s were quite accurate but could have been more accurate if the blind spot metre was made out of card so that it didn’t bend.

Luckily all the results fitted the pattern.

If I was to do the experiment again I would make the blind spot metre out of card.

By Ashley Stafford

...read more.

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

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