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

Plan of experiment to investigate the effect of different spring stiffness with the same weight

Extracts from this document...

Introduction

Plan of experiment to investigate the effect of different spring stiffness with the same weight

What I am going to investigate in this experiment is the relation of the period of springs with their stiffness. I will carry out this investigation the following way:

First I will get 14 springs of the same resistance or similar and combine them to create different spring stiffness. These are the combination: 2 in parallel with 1 in series, 2 in series, 3 in series, 2 in parallel, 3 in parallel.

The following is the rest of the apparatus that I will need:

1 clamp stand, 1 clamp holder, I stopwatch, unknown mass (for the moment)

Now, this is how I will carry out the test:

First, I will set up the apparatus as the drawing below.

Once this apparatus has been set up I will get the weight (which I will decide on later) then I will put one of the spring combination hanging from the clamp holder and put the weight to hang from it. Then I will input an extra force so that it starts oscillating with the up and down motion and with the stop watch in my hand I will get the oscillation rhythm by doing a count down of 3, 2, 1, 0 and then I will start the stop watch and count 10 oscillation and stop the stopwatch. I will repeat this five times for each spring combination. I will do the same operation for each of the spring combination.

...read more.

Middle

Period in sec

2 parallel, 1series

2 parallel

3parallel

1 spring

2 series

3 series

1

0.962

0.55

0.441

0.757

1.074

1.296

2

0.96

0.556

0.443

0.758

1.076

1.290

3

0.955

0.552

0.438

0.756

1.07

1.292

4

0.959

0.557

0.435

0.753

1.07

1.292

5

0.956

0.555

0.435

0.765

1.074

1.300

Average

0.9584

0.554

0.4384

0.7578

1.0728

1.294

Table to show value that will be used to draw graph:

Stiffness of spring (constant K in N/M)

Average period

63.508

0.4384

50.27

0.554

29.916

0.7578

13.423

0.9584

10.803

1.0728

6.9459

1.294

Skill area A: Analysing and considering evidence

Looking at the results that I obtained in this experiment and processing into a graph as previously done it is obvious that stiffer the spring constant faster will be the period, also a pattern can be seen which is that there is an indirect       proportionality between the stiffness of the spring and the period. Now looking at the equation of the graph that I obtained Y=3.2332x to the power of-0.4675 which suggests to me that if I draw a graph of the period against 1/square root of K. Now I came to this conclusion by first supposing that there should a direct proportionality between the period and the stiffness and that it could be compared to Y=mx + c and that x should be the power I am looking to get the direct proportionality, straight line graph.

...read more.

Conclusion

   In my opinion I have enough results however it would have been better I had been able to obtain more evidence this way I might have been able to take away some results which were a bit of the line and maybe cause some partial error. But still yes I have enough evidence to draw a conclusion which led me to draw this conclusion. The period of an oscillating spring is directly proportional to 1/the square root of k (its stiffness).

   First to support my evidence I could have used different springs with different stiffness which could give me even more support on my conclusion as these were only combination of similar type of springs and if others were used it would definitely prove that my conclusion is right. Also I think that my method can improved by putting an arrow along a stick in the middle of the spring oscillation and count the oscillation form that point because this way you always start and stop the stopwatch at the same tome as I encountered the problem that I wasn’t sure if it stopped there so it makes the timing easier. Also it reduces the time error as it is going at a middle speed not its maximum speed there are less chance of having time errors.

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

    and basic spring constant for the exact spring type and then running 2 independent experiments measuring in the each case the magnitude of stretch of the spring(s) at incremental points when placed under the strain of varying loads and then comparing those results, a spring constant (which I shall refer to using the letter k)

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

    the two springs in parallel extended a lot less than the single spring. Also the extension of the two springs in series seems to increase more rapidly than the extension of the springs in parallel. Analysing I plotted the results of my experiment onto a graph then drew lines of

  1. An investigation into the time period of a mass-spring oscillating system.

    It also states that frequency of oscillation is equal to the inverse of time period - "Frequency is the inverse of period. High-frequency oscillations have short periods, and vice versa." Assuming these two equations are correct, we can deduce that the following equation is the formula for the time period

  2. What factors affect the period of a Baby Bouncer?

    1.440 19.2 GENERAL OBSERVATIONS: * The mass extended the spring according to my prediction * There was sometimes a pendulum-like motion of the mass. This was particularly true for the smaller masses which have a smaller extension. However, this posed no problem for data collection as results were seen as anomalous and the test was repeated.

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

    I will also have to make sure that the rubber band is the same if I need to conduct the experiment at a later date as if it was a different rubber band, this would change the structure of my data and ruin all my observations.

  2. Investigating the Vertical Oscillations of a Loaded Spring.

    Therefore, the spring and the weight accelerate upwards/downwards and the oscillation begins. The acceleration can be calculated with Newton's Second Law But in my case, the acceleration can be defined as this: If we used a larger mass, the same forces would be seen, but lower down.

  1. The experiment involves the determination, of the effective mass of a spring (ms) and ...

    also be used to check the value of ms, with that of the other equation. They should equal each other, to a certain degree of accuracy. Apparatus Stopclock, slotted masses, clamp stand, spring, counterbalance weight. Apparatus Diagram Results Section Characteristics of Instruments Stopclock Range 00.00 - ?

  2. We are aiming to investigate the effect of force upon a spring. We will ...

    Then we will attach two springs on top of each other (in series) to the retort clamp. We will again measure the extension using 1N - 10N weights. We will repeat this process with two springs next to each other (in parallel).

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