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

Investigating elastic bands in comparison with springs.

Extracts from this document...

Introduction

Investigating elastic bands in comparison with springs.

Aim

My aim is to try and find out whether there is any connection between the way rubber bands and springs stretch once weights have been added.

Factors that may affect the experiment are:

  • The thickness of the band.
  • The length of the band.
  • The amount of weights added to the rubber band.
  • The temperature of the band and the room.

In this experiment I will use the number of weights as my variable. Therefore, so that this is the only factor that affects my experiment, I will use the same elastic band each time to ensure that the thickness and length of the band will remain the same throughout my experiments. I will make sure that the room temperature is the same each time I do an experiment my using a thermometer to check the temperature. This should not be too much of a problem however, as I will be using the same room each time I repeat the experiment and the outside temperature will not have changed to the extreme that it will drastically affect the room temperature.

Prediction

...read more.

Middle

As I have already stated, I will measure the temperature of the room in Celsius and the weights in Newton’s. I will also have to measure the length of the spring and I have decided to measure this in centimetres correct to the nearest 10th of a centimetre as I feel that this gives a sensible yet still accurate reading. I will record the extension in a table and then later the results will be presented on a graph.

As well as the points I have previously mentioned there are a few other things that need to be done to ensure that the experiment is safe and fair. I will need to wear goggles to protect my eyes from any bands that may happen to snap and shoot into my eye. I will stand during the experiment with my stool under the desk so that if the clamp stand for any reason is not properly secured and falls, I can move out of the way quick enough to prevent it from falling onto my feet. Each time I add weights I will expect the band to oscillate.

...read more.

Conclusion

To improve my experiment I would do another one so that I had three sets of results instead of two. This would make it more accurate. I would also try doing the experiment again but using a completely new elastic band to see if this affected the experiment as it may be stronger.

My results seem pretty accurate as when I compare the results from both experiments, the largest difference between them is on 0.3cm.

My evidence is strong enough to confirm my prediction because it clearly shows that the extension does not go up in proportion to the load and this is what I predicted. It shows a comparison between springs and elastic bands which shows what my results would be if the extension was going up in proportion to the load. Also, as my results were accurate, I think it is safe to say that my evidence is strong enough to confirm my prediction.

If I were to do any further experiments I would try springs/bands in parallel and two springs/bands in series and see how these affected my results.

...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. Peer reviewed

    What affects the voltage output of a solar panel?

    3 star(s)

    This shows that the results were fairly constant and that they were accurately measured; taking into account that there was no full control over background lighting, which explains spreads more than 0.01V. The use of repeats increased the precision in my results and has shown that there were no rogue results, due to the low spread.

  2. Investigation on how putting springs in series and parallel affects their extension.

    5 identical springs- must be identical to ensure a fair test Copper wire- to attach the weights to the springs; this is particularly important for the two springs together in parallel as I will need to ensure that the weight lies in between the two springs and that the weight

  1. The aim of this investigation is to examine the effect on the spring constant ...

    As mentioned in the plan, the results above do not show the actual extension of the springs (which is what is to be looked it during the analysis), however they show the total length of the spring(s), including the original spring length.

  2. The Stiffness Of Springs

    in a parallel system, they will share the tension of the mass equally. As I think this will produce half the extension, the system must have a larger spring stiffness as F = kx. The force will stay the same, and if the extension decreases by half then the spring stiffness must double.

  1. Stretching Rubber Bands

    (5N on the thick band = 5.35cm extension, whereas 5N on the thin band = 9.1cm extension.) 1) Add 1N of weight to the rubber band and record its start position on the ruler. 2) Use the mirror to gain accurate results from the needle.

  2. Investigation into the elasticity of a set of springs under differing conditions.

    A pointer (made from the card board) will be attached to the meter rule and this will be used as a point of reference whilst measuring the extension. Now I will add a 10N weight onto the spring and wait for the spring to stop oscillating, I will then measure the distance between the marker and the new position.

  1. Physics - The aim of this practical investigation was to obtain a value for ...

    To reduce parallax while timing make sure your eye is level with the equilibrium position, which changes with every mass. Table of Results Resolutions: Stop clock �0.01s, Masses �5% Mass (kg) � 5 % Time for 10 Oscillations (s) �0.2s Mean Time for 10 Oscillations (s) Period (s) Period2 (s2)

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

    Extension of rubber band after each 10g weight (cm) Tension force on the rubber band (g) 10 2 10 10 4 20 10 6 30 10 8 40 10 10 50 10 12 60 The table on the previous page resembles in no way in which I predict the results to come out as, it is just of what

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