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

Investigation of the relationship between extension of a spiral spring material per unit of load applied on it.

Extracts from this document...

Introduction

Investigation of the relationship between extension of a spiral spring material per unit of load applied on it.

Introduction

The objective of this investigation is to find out the relationship between the extension of a spiral spring per unit mass of load applied.

I believe that the following are two main factors or variables that affect in a big way the extension of a spring

Variables

  • Firstly the force put on the spring which is the weights. I believe that the weights that are put on the spring will have the biggest affect on how the extents.
  • Secondly the other variable is the extension. This is because the extension of the spiral spring changes with the load applied on it.
  • Stiffness of the spring, an very stiff spring will extend lesser than a lesser stiff spring. This is because the particles are closer together so more load will need to be applied to weaken the bonds.

Apparatus  

The following equipment will be required in order to do this experiment:

  • Firstly a clamp stand this will be used to this will be used to connect other apparatus in to one place. This will put the spring a good distanced up to prevent the spring from coming in to contact with the table which it will be on. The spring will be suspended from the stand to allow it enough space to stretch.
  • Secondly two bosses will be used, one to hold the spiral spring in place and the other to hold the 1 meter ruler firmly in place. The bosses help secure all the apparatus in to place.
  • Thirdly a weight hanger will be used to put the weights on the spring. The hanger will be connected to the bottom part of the spring.
  • Also 100g weights will be put on the hanger one at a time.
  • And lastly one last clamp will be used to clamp the bottom of the stand to the table. This is done to stop the stand from toppling over.
...read more.

Middle

15

0.6

6

29.8

19

0.7

7

32.1

23

0.8

8

34.7

26

0.9

9

37.9

32

Mass on the hanger kg

Stretching force N

Scale reading

       /cm

Extension of the spring/mm

0

0

23.6

0

0.1

1

24

4

0.2

2

2437

7

0.3

3

25.6

9

0.4

4

26.5

12

0.5

5

28.1

16

0.6

6

30

21

0.7

7

32.9

27

0.8

8

36.1

32

0.9

9

40

39


Mass on the hanger kg

Stretching force mg/n

Average Scale        reading

...read more.

Conclusion

In the tables of results the stretching force was obtained my using the formula F=mg, where g = 9.8N/kg. The results show that my prediction at the start of the investigation was right, as the load applied on the spring increases, so does the extension of the spiral spring. So the two are proportion to each other, this is there relationship.

The graph that Is plotted on the pervious page is extension of the spring against the stretching force which is in newtons (N). when the line of best fit is drawn on the graph the plotted points come really close to it. This shows that the extension of the spring is directly proportional to the stretching force. In other words, if the stretching force is doubled the extension id doubled and so on. This relationship can be expressed as the following:        Stretching force(F)          Extension(X)

                           F=Kx                                    

                           K= F/x

Now that the graph is completed the spring constant can be calculated by using the equation  F=KX where K is the spring constant. The gradient(slope) of the line also gives the spring constant because stretching force divided by the extension. The formula for finding the gradient of a grade is as following:

 = Y2 – Y1. =  9-0          = (0.253 + error)

                                                  X2 – X1     35.5-0

Spring constant (K) =      (0.253 + error)                            

So the spring constant would be  0.253 in the force was in is in newtons, but if its in grams the answer would be( 25.49 + error).

...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. Find out what factors effect the stretching of a spring.

    28.7769 - 27.4 = 1.3769 = 0.047 x 100 = 4.7 28.7769 The difference between the two sets of results is 4.7 % From my results from both experiments I can see that as load increases so does extension of a spring.

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

    x = F/k) then: ks= F F/2k Which, rearranged algebraically equals: ks= 2k Evaluation The experiments that were used in this investigation were all conducted in a relatively short period of time and using relatively low-tech instruments. Yet despite this, fairly accurate results, displaying the predicted effects on the spring constant of parallel and series arranged spring sets, were obtained.

  1. Making sense of data - finding a value for the young modulus of a ...

    First of all, when measuring the deflection of the ruler with certain weights as they had an initial bend due to their own weight. The screw gauge that I used during my experiment to measure the breadth of my ruler had a zero error of -0.01mm and the weights that

  2. Investigate any relationship present between the distance between a solar cell and a lamp, ...

    Like gravity, it is an inverse square rule. I ??1 d2 This is because as the object gets further away, the spheres of light that emanate from the bulb, every time they double in distance, they cover 4 times as much area, instead of just double, as hey operate in spheres.

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

    The spring may fly across the room. Safety goggles will be worn just in case the spring does become loose and heads towards one's eyes. All other standard laboratory procedures and safety standards will be strictly adhered to. RESULTS: Mass (g) Time 1 (s) Time 2 (s) Time 3 (s)

  2. An investigation into the stretching of materials

    Measurements I have thought at length about the number of measurements I will take of the extended elastic band length and have decided to take six measurements from each elastic band after I add each newton weight, unless the elastic limit has been reached. I will test three elastic bands.

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

    I was led to believe that from my introduction that the rubber band was no longer following Hooke's Law. This means that if I am to say this that means that the results at the beginning of the experiment did not apply Hooke's Law and that only up until a

  2. My aim in this experiment is to find out how force affects the extension ...

    Observations When the weights were put on I noticed the coils on the spring were separating. The more weight I exerted on the spring, the more the coils separated and the longer the extension of the spring. When the weights were removed, the spring returned to its original shape.

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