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

An Investigation into the elastic properties of different thickness of elastic bands

Extracts from this document...

Introduction

An Investigation into the elastic properties of different thickness of elastic bands.

Planning

Aim:the aim of this experiment is to find out what effect that different thickness’ of elastic bands has to the amount they stretch under a series of different weights. To test this I shall use different thickness’ of elastic band that are all the same length.. The final adjustment I shall make is to measure the thickest band with greater weights as well. This will show the effect of weight and its relation to the amount the band stretches.

Hypothesis:

According to hook’s law the expansion of a spring is proportional to the weight it supports. If the same applies to the rubber band it to should increase in the amount it has expanded when a greater weight is applied. I therefore am able to predict that although not all the time the band will expand at the same rate as the amount of weight applied. However elastic bands are not quite as elastic as springs and so I do not expect this to be completely true.

...read more.

Middle

Variables:    

The 2 things I am going to change (on purpose) is the thickness of the band and the amount of force pulling on the band. I will only change one variable at a time. The fact that I shall have to do it over two days could affect the temperature of the band and this could have a direct effect on the results of the elastitisity band. I shall however use the same equipment for the experiment. The person who looks at the elastic band shall be the same all the time.

Measurements:

I am going to measure the length of the band between 0.1cm and 30 cm. This shall be accurate to 0.1 of a cm. The weight being used on the band shall be measured between 10grms and 500grms.

Plan/Method:

First of all I shall start of with the thinnest band and with the 10grm weight. After I take down the result I shall increase the weight by 10grms and take the result again. I9 shall repeat this until I get up to 150grm where I shall increase the weight by 50 grams and take the result.

...read more.

Conclusion

This is shown in band 12 and Band 2 where the band suddenly stretches a lot greater then previously. These results compliment my hypothesis very well.

Evaluating Evidence

The Evidence:

I had plenty of evidence as a clear pattern can be seen in each of the band graphs. These patterns also make a lot of sense. The evidence was very accurate however it was not as accurate as it could have been. A few pieces of evidence can be seen to make not as much sense in the whole feel of the graph. However these differences are not massive. The evidence is still good enough to support my theory. As there is enough of it and it is quite accurate.

Improvements:

I could have improved my experiment by using a ruler to check out the length to be sure. This would have made my results more accurate but probably would have made the pattern the same. I could have extended my experiment  by including more results between 150 to 500.  

...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. Squash Ball and Temperature Investigation

    Also one person will be appointed to read off values from the metre for the bounce back height of the ball as different people will approximate the height values differently making the results slightly anomalous. My fixed variables, which will ensure that testing is fair and results are accurate and

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

    But other factors may use some of this energy when it is being converted into kinetic (movement) energy as the trolley moves down the ramp. The friction between the wheels of the trolley and the surface of the ramp can 'steal´┐Ż some of the energy used to move the trolley and convert it to heat instead.

  1. "Oh My Elbow - Investigation Into Force Applied To Elbow Joint".

    will equal the sum of the anticlockwise moments (i.e. the tension in the string) around the pivot (the nail). From this I can work out the tension in the string because I will know the moments of the ruler and the fixed masses and I also know the distance of the string to the pivot.

  2. Mechanical Properties of a Meter Rule

    The strain is an increasing. When a forces act toward the ends or a direct push, the stress is a compressive stress. The strain is a decreasing. These stresses may act together, producing compound stresses, as in flexure. When a bow is bent there is a compression of the fibres

  1. Investigate the relationship between pulling back an elastic band and how much force it ...

    In this investigation, friction is crucial, as without friction, the tub would not stop. So I will use the same desk as some desks may be stickier than others, thus causing more friction. This would make the tub travel less.

  2. How Does Changing The Force In An Elastic Band Affect The Distance Travelled By ...

    I will repeat the experiment at 2N again, and continue to add weights till when I let go of the elastic band the tub doesn't turn over. When I find out the amount of weights I need in order for the tub to not turn over, I can begin my experiment.

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