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Hooke's law lab report
Experimenting with Hooke's law to determine the spring constant of a spring
Introduction: To fully understand hooke's law you will need to understand the following terms:
Force a quantity that produces an acceleration (F=MA)
Displacement the difference between the starting position and its new position
Spring constant the stiffness of the original spring
Hooke's law The law that the stretch of a solid is directly proportional
The purpose of the experiment is to find the spring constant using Hooke's law. The formula for hooke's law is F=MA, mass times acceleration. It can be also solved by the formula= KX. The variable F is measured by the acceleration of gravity(0.98) multiplied by the mass of the weight. The variable X stands displacement of the spring. The variable X is obtained by subtracting the final stretch of the spring from the equilibrium position. The variable X is the spring constant. With the variables above we will be able to determine the spring constant using Hooke's law. The key variable to this experiment is K, the spring constant.
Variables
The independent variable is controled, which are the weights that are changed for scientists to examine.
The dependent variable is the value of dependent changes as results of the changes made. In this experiment the dependent variable is
Data processing
Test 1
Trials  Weight(kg)  Force(N)  Length of spring(m)  displacement(m)  spring constant(N/M 
1  0.0  0.000  0.280  not calculated  not calculated 
2  0.1  0.098  0.405  0.125  7.840 
3  0.2  0.196  0.520  0.240  8.167 
4  0.4  0.392  0.7050  0.470  8.340 
5  0.5  0.490  0.890  0.610  8.033 
Test 2
Trials  Weight(kg)  Force(N)  Spring Length  Displacement(m)  Spring constant(N/M) 
1  0.0  0.000  0.280  not calculated  not calculated 
2  0.1  0.098  0.405  0.125  8.840 
3  0.2  0.196  0.520  0.240  8.167 
4  0.4  0.392  0.750  0.470  8.340 
5  0.5  0.90  0.890  0.610  8.033 
Data processing: The tables has shown the greater the spring constant is, the stiffer the spring will be.
Conclusion: The experiment did not support its purpose. The spring constant is not always the same, it will change whenever there is more or less force is exerted on the spring. The two data tables has shown the changes of the spring constant.
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