practical physics
Sunday, 26 june 2016, experiment 05: the spiral spring.
- The ruler was carefully viewed from all angles to ensure that it was vertical (unlike the one on the right).
- A pointer was used to help read the scale on the ruler. The scale had to be viewed at eye level to avoid parallax error.
- Readings of the 'ruler reading' were noted down - no mental maths involved- extensions etc. were worked out later!
- The experimenter had to be sure the spring system was stationary before a reading was taken.
- At the end of each set of readings the position of the ruler was adjusted before the experiment was repeated. This was to avoid 'repeat' errors (looking for the reading value from the previous set of results!)
Recording Results
- We used masses - we therefore needed a column to record the mass we used.
- The weight of each mass added was then calculated and recorded in a separate column. Mass gets pulled by gravity. The force that that produces is called the weight. We can work out the weight exerted by the masses in our results by using the equation:
- The readings from the ruler were recorded in a column and
- the total extension for added weight to the hanger was calculated from these 'bare readings' on the ruler, by taking the reading away from the initial reading.
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Determination of the spring constant and effective mass of a given spiral spring and hence to calculate the rigidity modulus of the material of the spring.
Abstract
Introduction.
Theory
Apparatus
Experimental Data
Calculation .
Percentage error
Discussion
Conclusion .
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Principle of Physics (PHY111) Lab Experiment no: 4
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Plot a graph of \(T^2\) vs. load. Fine the slope and the \(x\) - intercept. Use the slope of your graph to solve for \(g\). Does the value you obtain for \(g\) agree with your expected value of nearly \(9.8\text{m/s}^2\)? If there are differences try to explain them. What is the value you predict for the effective mass, \(m\), of the spring?
Jun 26, 2016 · A graph was plotted of the weight added to the hanger against the extension of the spring. The points of both sets of results were plotted on the one graph. This gave us a scatter graph of the results. It showed us not only the trend of the results but also how precise our readings were. A key explaining 'which set was which' was written on the ...
Fig. 1 Determination of the spring constant and effective mass of a given spiral spring. Consider the kinetic energy of a loaded spring undergoing simple harmonic motion. At the instant under consideration let the load be moving with velocity 𝑣 as shown in Fig. 1. At this same
Mar 5, 2020 · In this experiment a spring is suspended vertically from a clamp attached to a rigid frame work of heavy metal rods. At the bottom end (which is the free end) of the spring a load of mass, m 0 is suspended. So the force acting on the spring is the weight m 0 g of the load which acts vertically downward and the spring gets extended. Due to the ...
7. Make a graph of the force, F, versus displacement (Δx). You will have five data points for this graph: the four data points for each of the four masses, and an additional data point at (0,0). This data point is valid because when 0 kg hung on the spring, it was displaced 0 m from its equilibrium position. 8.
So, if we draw a T2 vs. mo graph, it will be a straight line and its x-interception gives us the effective mass of the spring. Apparatus A spiral spring, convenient masses with hanging arrangement, a hook attached to a rigid framework of heavy metal rods, weighing balance, stop watch and a scale Procedure 1.
When a load F suspended from lower free end of a spring hanging from a rigid support, it increases its length by amount x, then F x or F= k x, where k is constant of proportionality. It is called the force constant or the spring constant of the spring. DIAGRAM PROCEDURE 1. Suspend the spring from a rigid support. Attach a pointer and a hook from .
spring balance of 100 g); a rigid support, hanger and five slotted weights of 10 g each (in case the spring constant is of high value one may use slotted weight of 20 g), clamp stand, a balance, a measuring scale (15-30 cm) and a stop -watch (with least count of 0.1s). P RINCIPLE Spring constant (or force constant) of a spring is given by
In this experiment, you will examine the simple harmonic motion of a mass on a spring, one of the simplest forms of harmonic motion. When a load is gradually applied to the free end of a spring suspended from a fixed support, the spring usually stretches until the tension in the spring just balances the weight of the load.
This lab report describes an experiment to determine the spring constant and effective mass of a spiral spring. The experiment involves measuring the extension of the spring under different hanging masses and the corresponding oscillation periods. Graphs of extension vs mass and period squared vs mass are plotted. The slope of the first graph is used to calculate the spring constant, while the ...