• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10

Physics Pendulum Experiment

Extracts from this document...

Introduction

                                                     Kasim Hassan

Physics Coursework

In this investigation, I am going to find the time taken for a basic pendulum to perform a full oscillation (to and fro).

Oscillation is the regular movement of a mass back and forth; from one direction to another e.g. a simple pendulum swinging back and forth. A pendulum is a weight on the end of a rigid rod, which, when given some initial lift from the vertical position, will swing back and forth under the influence of gravity over its central (lowest) point. A torsion pendulum consists of a body suspended by a fine wire or elastic fibre in such a way that it executes rotational oscillations as the suspending wire or fibre twists and untwists.

The aim of this experiment is to find one of the factors affecting the mass of oscillation on a wire. We will be keeping the length of wire the same throughout the entire experiment, but we will change the mass of the wire.

The pendulum will be string, with a weight hanging on the end.

The factor that will affect the time taken for one full oscillation is the mass of the weight.

Oscillation is the regular movement of a mass back and forth; from one direction to another e.g. a simple pendulum swinging back and forth.

...read more.

Middle

100

8.57

9.03

8.43

8.49

9

8.7

0.87

0.76

300

12.19

11.8

11.84

11.96

12.01

11.96

1.196

1.43

500

17.44

17.16

17.28

17.32

17.2

17.28

1.728

2.99

700

20.35

20.31

20.57

20.29

20.51

20.41

2.041

4.17

900

22.63

22.26

21.97

22.09

22.23

22.24

2.224

4.95

Prediction

My prediction is that the more weight that is added to the bottom of the spring, the more energy is stored, and therefore will create larger oscillations. This is because according to my theory, the heavier the mass put on the spring, the larger the extension will be. So, if this is correct, there will be more energy, therefore resulting in larger oscillations.

Evaluation

In my opinion, the experiment went fairly well. I managed to obtain a full set of results, which were mostly accurate, and which I managed to make good use of. I was initially surprised at how easy the experiment went, and how I managed to almost instantly obtain accurate results.

This investigation has been successful because I have completed my aim and showed this by producing a graph with time against mass.

Although the majority of results were within range, I believe I could have made the experiment even more successful. This is due to the few outliers there were.

I could have possibly narrowed the gaps between the masses, by using 50g masses instead of 100g, in order to obtain a larger set of results.

The second way I could have improved my experiment, is to increase the number of readings taken to possibly 7 or 10.

...read more.

Conclusion

  • Ensure the spring is not loaded beyond the elastic limit.

Conclusion

After analysing my results, I have come to the conclusion that the longer the weight of the mass, the longer per 5 oscillations.

I immediately noticed from my graph and table of results, that as the mass became heavier, the time per oscillations increased, thus suggesting my prediction is correct.

This therefore shows there is a strong correlation between weight of the mass, and the time per 5 oscillations.

In order to complete my graph of curve of best fit, I divided the average time by 10.

Then in order to calculate the line of best fit, I squared the results in the curve of best fit.

After looking at my graphs, I can see there are a few anomalies, particularly on the graph with the curve of best fit. Other then this, I believe my results are fairly accurate, thus suggesting my experiment, on a whole was done well.

Due to the lack of major spread in my data, I do not feel the need to include error bars in my graph.

I believe the results on the graph with the line of best fit, were particularly well. There is only one slight anomaly at 300g, meaning that the results are not fully perfect. This is not hugely significant however; as the straight line is in line with 0g meaning the experiment was fairly successful.

PHYSICS      COURSEWORK

                   KASIM HASSAN

                              11W

...read more.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Here's what a teacher thought of this essay

3 star(s)

This is a good attempt at a report, although the structure is not correct.
1. The method section is well written.
2. The evaluation shows a good level of detail.
3. The table of results shows a lot of data.
4. The beginning section needs to be divided up using subheadings.
5. The conclusion does not attempt to explain the pattern in the results.
6. The report itself needs to be restructured.
*** (3 stars)

Marked by teacher Luke Smithen 29/05/2013

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 GCSE Forces and Motion essays

  1. Marked by a teacher

    The aim of this experiment was to compare the elasticity of arteries and vein ...

    4 star(s)

    To the ring of artery a mass carrier was placed, to which the force was then applied. A ruler was used to measure the distance the vessel had stretched after this force had been applied. The sketch below reiterates this method.

  2. Investigate to see if adding mass to a cupcake case will increase the speed ...

    Evaluation Overall I was quite pleased with my success in the experiments. Apart from learning many things through my study of physics I have been able to grasp, many formula, and other information about free fall. I will state that my results are not perfect to the hundredth of a second.

  1. How does the weight of an object affect the friction it has on the ...

    Mass of block of wood (g) Average force needed to overcome static friction (N) (1dp) Weight (R) (2dp) 325 1.9 4.19 475 2.6 4.66 625 3.6 6.13 825 4.8 8.09 975 5.8 9.56 1125 6.8 11.03 1275 8.0 12.50 Part 3)

  2. Factors affecting acceleration

    The further the car falls, the faster it will go so if I release them from different heights the acceleration of the cars will be different. When I measure the times for the balls, In theory it should not matter which weight I should use as mass should not matter to the acceleration.

  1. Determining the acceleration due to gravity by using simple pendulum.

    This distance could then be measured more accurately than trying to guess where the middle of the bob is. The diameter of the bob could be accurately measured with some vernier callipers so that the true length of the pendulum could then be calculated. The thread used was quite stretchy.

  2. This investigation is about what factors affect friction.

    to get efficient set of results I will measure how much force is needed to move the block three times. This way I can work out the average. I will then put a weight of 1N (0.1kg) on to the block, and drag it to se how much force is

  1. Investigating the effect of mass on a parachute

    pilot test, I have come to the following conclusions to amend my detailed plan (method): I am no longer going to use a mass of up to 25g of plastercene in the experiment.

  2. Report on Newton's laws of motion

    opposite in direction applied on and by two different bodies (bookrags, n.d.). Some examples of the third law: 1. What enables us to walk? To move forward we must push toward the back on the ground with one foot, according to Newton?s third law, the ground pushes forward, moving us ahead.

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