• 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. Peer reviewed

    The effects of the extension of a spring on the time it takes a ...

    3 star(s)

    The values on the bottom are the things which change because we are changing the extension (X). Prediction As the mass increases the time increases. Therefore the oscillations of the mass are slower. The force is equal to the mass times acceleration, so therefore as the mass increases the acceleration must decrease for the force to remain constant.

  2. 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)

  1. In this experiment, I am going to find out the relationship between Force and ...

    to a point known as the elastic limit were it was seen to curve. An increase in load did result to an increase in extension as seen in both graphs until the yield point. The stiffness of my stretchy sweet is 9.27 X 10-1Nm-1.

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

    xT xT xT 23.34 25.98 25.05 23.33 22.04 28.30 24.65 26.88 0.47 0.65 0.72 0.78 0.88 0.94 0.99 1.08 0.221 0.423 0.518 0.608 0.774 0.889 0.972 1.158 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 15 13 13 11 11 10 9 42 30 26 26 22 22 20

  1. The Anglers Problem

    When the tension is removed, the stretched rubber band spontaneously snaps back to its original shape. The cooling effect means that it is an endothermic process, so the entropy of the rubber band increases when it goes from the stretched state to the natural state.

  2. Earthquake Simulation Program.

    The last picture shows the "recoil effect". After an earthquake, the plates appear to move back toward each other; the fault line is adjusting. This is when aftershocks occur. Earthquakes can be classified into three main categories: * Shallow (0-70 km below the Earth's surface) * Intermediate (70-300 km below the Earth's surface)

  1. Measuring spring constant using oscilations of a mass.

    Background Theory And Source For Relevant Information The main aim of this experiment is to find the spring constant, k and see that is the effective mass, me small enough to be ignored. I would do this by measuring oscillations of different masses on the spring and then using the

  2. I intend to investigate whether any correlation exists between the wavelength of light exerted ...

    This is because a ?best fit? is not needed; it would serve only to obscure the true values for rate of response. Here is the Red LED dataset gradient as shown by the trendline and by manual gradient calculation from Max/Min values: This would have introduced an uncertainty of -3% (((118.43-122.4)/122.4)

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