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

Physics Lab

Extracts from this document...

Introduction

PHYSICS LAB REPORT Investigating the oscillation of a spring under different forces Aim: To find the spring constant k of a spring under different forces by using different masses to produce extension and oscillations. Apparatus: * Spring * Hook and weights * Clamp stand * Meter rule * Laptop with Logger Pro * Motion sensor and other electrical appliances Method: 1. Using the meter rule measure the length of the spring. 2. Fix the motion sensor onto the clamp stand and attach the spring to the hook on it. 3. Attach the weight hook (mass 100g) to the spring. 4. Allow the spring to become more or less stationary and then measure its length. 5. Repeat steps 3 and 4 using 200g, 300g, 400g and 500g masses in turn and record all the results. 6. Set up the laptop with Logger Pro and the other electrical appliances, including the motion sensor. 7. Attach the weight hook (mass 100g) to the spring and allow it to oscillate freely. 8. Start the data collection on Logger Pro and use it to find the time period for one oscillation (which is actually the wavelength of the sine-curve graph). ...read more.

Middle

This gives the formula F = kx, where k is the spring constant of the spring. Putting this equation in the form y = mx + c we get k = F � x, where k is m, the gradient of the graph. Graph 1: Force plotted against extension:- The gradient of the graph, which is the spring constant, is around 10.26. The gradient of the maximum line is around 10.33 and the gradient of the minimum line is 10.18. This means that the spring constant of this spring is 10.26 �0.08. In order to ascertain that 10.26 is the value of k for this spring another graph can be plotted using a different formula which is , where T is average time in seconds, m is mass in kilograms and k is the spring constant. Putting this formula in the form y = mx + c we get the gradient of the line k = ((2?)� � m) � T�. Table 3: Mass used and time taken for one oscillation:- Mass (in Kg �0.001Kg) ...read more.

Conclusion

* From Graph 1 we have 10.26 �0.08, which gives us numbers in the range of 10.18 and 10.34, both inclusive. * From Graph 2 we have 9.67 �0.51, which gives us numbers in the range of 9.16 and 10.18, both inclusive. * From the number line we see that 10.18 is the only value that falls into the range from both graphs, so this is assumed to be the value of k. Evaluation: Sources of error:- * Since the experiment was conducted mainly using electronic equipment, the chances of errors are slim. However, when calculating the time taken using Logger Pro, estimations were made based on the graphs, and this uncertainty was not calculated. * Random and parallax errors may have occurred while measuring the length of the spring. Improvements:- * Instead of estimating the time taken for one oscillation to be completed by looking at the graph the time table could be used for greater accuracy. * Doing more trials and using a wider range of masses or comparing the spring constants for two different springs would produce varied data that could be compared to the results of this experiment. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Physics 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 International Baccalaureate Physics essays

  1. Finding the Spring Constant

    taking absolute values is because while I am at the graphing phase, I cannot use percentage values to graph uncertainties thus I will need the absolute values to graph uncertainties. Table 3- Average times for each mass Mass, m/kg Time, T2/s2 0.100 � 0.004 0.139 � 0.054 0.200� 0.008 0.328

  2. Analyzing Uniform Circular Motion

    The second major source of error is the reaction time. The fact that only two trials were taken, it is not enough to eliminate the idea of a random error.

  1. THermal Physics Lab

    3 720 21 24 5 900 19 22 6 1080 19 21 7 1260 18 21 9 1440 17 19 10 1620 15 18 12 1800 15 18 14 Calculating heat loss for water: Density of water = 1 Kg/L (in the calculations below the density of water is rounded to 1 Kg/L.

  2. In this extended essay, I will be investigating projectile motion via studying the movement ...

    This will lead to more accurate results. * It is known that the smaller size of object, the smaller the air resistance. Based on this principal, we can use a smaller sized metal ball in order to reduce the effects of air resistance on the metal ball.

  1. Experiment on looking at enthalpy of solutions

    17,70 17,65 74,00 17,60 17,70 17,65 75,00 17,60 17,70 17,65 76,00 17,60 17,70 17,65 77,00 17,60 17,70 17,65 78,00 17,60 17,70 17,65 79,00 17,60 17,70 17,65 80,00 17,60 17,70 17,65 81,00 17,60 17,70 17,65 82,00 17,60 17,70 17,65 83,00 17,60 17,70 17,65 84,00 17,60 17,70 17,65 85,00 17,60 17,70 17,65

  2. Bullet Train Newtons Laws

    Though the bullet train may seem perfect but nothing in the world is perfect. The bullet train runs on electricity, it would be environmentally friendly only if the power source they use comes from solar energy or a hydro turbine system.

  1. HL Physics Revision Notes

    energy is the combustion of carbon. Carbon combines with oxygen to release thermal energy along with light and sound energy. Nuclear energy is the energy that is associated with the nuclear structure of atoms and is therefore associated with the strong force.

  2. Rocket Physics Lab

    ± 0.005m 0.206 0.234 2/3 size paper rocket (m) ± 0.005m 0.36 0.3 ½ size paper rocket (m) ± 0.005m 0.356 0.274 Conclusion: My hypothesis where as the mass of the paper rockets increases, the distance travelled will decrease because the mass of the rocket is heavier with more amount of paper used is not supported.

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