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

Does an elastic band behave in the same way as a steel spring?

Extracts from this document...

Introduction

Does an elastic band behave in the same way as a steel spring?

Apparatus

Clamp stand, rubber elastic band, 0.5N weights, 1 metre stick, clamp and pointer.

Method

We set the apparatus as shown above. First of all we took the measurement on the metre rule in cm, of the elastic band at the pointer without any weights attached. Then we steadily increased the force by adding a 0.5N weight each time to the elastic band. We did this until we reached 3N, and then steadily decreased the force by carefully taking of a 0.5N weight each time, until we had no weights attached to the elastic band. Next we again took the measurement on the

...read more.

Middle

Apparatus

Units on metre rule to record results (cm)

Person taking measurement

Amount of load added each time

Person adding and removing weights

Temperature

Position

Lastly, we worked out an average length in cm by adding the 3 results and dividing by 3. We then took 1 average from an other to work out the extension. As seen in the results table over the page.


Conclusion

My graph shows the relationship between the weight on an elastic band and its extension. The graph is not a straight line showing that’s its extension is not proportional to its load, disobeying Hooke’s law. My graph shows that the elastic band has been stretched because the unloading of weights has

...read more.

Conclusion

Also, smaller weights would of given me a more accurate graph and results, from having smaller weights I would have a clearer idea of how differently a elastic band behaves to a steel spring. If I were to repeat my experiment again I would add only a 0.1N weight each time.

Lastly, I only went up to a maximum of 3N then back down, but with more time available I would of gone up to 6N to test the elastic bands elasticity, strength and to obtain more accurate results to find out exactly how a elastic band behaves.

SEAN JOHNSON 10L

...read more.

This student written piece of work is one of many that can be found in our AS and A Level Waves & Cosmology 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 AS and A Level Waves & Cosmology essays

  1. An experiment to investigate and determine how rubber behaves when tension forces are applied ...

    I have also worked out that 1N = 1kg and this is what I am going to base my knowledge on. I feel that I will have to use the extension somewhere in my experiment but I am unable to comply where as of yet.

  2. Investigation to show how Elastic Bands Behave Under Load.

    This graph below shows how the rubber behaves. The term hysteresis is used to describe the difference between 'loading' and 'unloading' curves. When the stress is reduced from point a to b, the strain remains greater than if there was no hysteresis.

  1. I am doing an investigation in to how much a metre rule bends when ...

    But if (g) and height remain constant and the mass becomes 1000g (1kg) then the gravitational potential energy = 1kg x 10N x 90cm (0.9m) = 9 joules. This also proves that the greater the mass, the more the rule will be inclined to bend as there is a greater

  2. To investigate the stretching of an elastic band when it has some load on ...

    So as part of my preliminary work I just want to check whether 880g is too much for the elastic band, so if it snaps I will have to get another elastic band and think of the elastic limit more carefully but then again not every elastic band has the same limit.

  1. Investigate Whether Elastic Bands and Springs Behave the Same Way.

    However if the temperature is raised then the heat energy will be transferred to the molecules, as the molecules vibrate more the bonds to weaken, resulting in the material expanding and become more stretchable. The bonds will also weaken if the band has been used frequently (this will heat the

  2. Waves and Cosmology - AQA GCE Physics Revision Notes

    * They can only move between the energy levels by absorbing/ giving up energy in a mounts equal to the difference in energies between the levels. The unique sets of spectral lines are due to different set of energy levels in each element.

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