Investigation of elasticity
AS1b SE FC
Sheffield International College
James Bott
Group: FS13 student no. 10838
Introduction
When the object is loaded through spring freely that can be considered as elasticity. The simple elasticity consists of a mass, a mass hanger, a steel spring and a retort stand.
There are two forces, which affect the spring. The first force is gravity which is the force exerted by the gravitational field of a massive object on body within the vicinity of its surface. The force of gravity on earth has value approximately 9.81 m/s2 and always equals to the weight of the object as the equation: F = mg. m is mass (in kg) and g is gravity on earth (John, 2009). The second force is spring force; the magnitude of the force is directly proportional to the amount of stretch or compression of the spring.
Law of elasticity is known as Hooke’s law, showing the relationship between the forces applied to a spring and its elasticity, which states that relationship between small deformation of the object and the displacement or size are directly proportional to loading and the deforming force. According to Hooke’s law, elastic behaviour of solids could explain by the fact that in component ions, molecules, or atoms from normal positions, which is small deformation, are also proportional to the force that causes the displacement. The deforming force might be applied to a solid by squeezing, compressing, stretching twisting, or bending. Accordingly, spring will return to its primary size and shape upon discharge of the load (Tega, 2010).
Mathematically, Hooke’s law states that F equals the displacement or extension length multiplies a constant k, or F = k∆l. F is the force in the spring which migh...
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Reference
Henderson, T. n.d. The physics classroom tutorial. Lesson 2: Force and Its Representation [Online]. Illinois. Available at: http://gbhsweb.glenbrook225.org/gbs/science/phys/class/newtlaws/u2l2b.html [Accessed: 28th March 2014].
Jessa, T. 2010. What is Hooke’s Law? [Online].
Available at: http://www.universetoday.com/55027/hookes-law/ [Accessed: 25th March 2014].
The editors of Encyclopedia Britannica. n.d. Hooke’s law [Online]. Available at: http://www.britannica.com/EBchecked/topic/271336/Hookes-law [Accessed: 27th March 2014].
Villanueva, C. J. 2009. Force of Gravity [Online]. Available at: http://www.universetoday.com/34824/force-of-gravity/ [Accessed: 28th March 2014].
Wordpress, 2012. Factors that Affect Elasticity [Online]. Available at: http://captainhooke.wordpress.com/2012/09/24/factors-that-affect-elasticity/ [Accessed: 3rd April 2014].
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