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
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Kirkpatrick & Wheeler, Physics A World View. Copyright 2001, 1998, 1995, 1992 by Harcourt, Inc.
2. Kirkpatrick, Larry D. and Gerald F. Wheeler. Physics: A World View. ed. 4. Harcourt College Publishers. Fort Worth. 2001.
Elasticity is the responsiveness of demand or supply to the changes in prices or income. There are various formulas and guidelines to follow when trying to calculate these responses. For instance, when the percentage of change of the quantity demanded is greater then the percentage change in price, the demand is known to be price elastic. On the other hand, if the percentage change in demand is less than then the percentage change in price; Like that of demand, supply works in a similar way. When the percentage change of quantity supplied is greater than the percentage change in price, supply is know to be elastic. When the percentage change of quantity supplied is less then the percentage change in price, then the supply then demand is known to be price inelastic.
Newtons second law can be indentified more easily using the equation F=ma. This is an equation that is very familiar to those of us that wish to do well in any physics class! This equation tells us many things. First it tells us the net force that is being exerted on an object, but it also tells us the acceleration of that object as well as its mass. The force on an object is measured in Newtons (I wonder where they got that from). One Newton is equal to one (kg)(m)/s^2. For example, if superman pushes on a 10,000kg truck and it is moving at a rate of 2m/s^2, then the force that superman is exerting on the truck is 20,000N. For those of us that wish to move on in the field of physics, Newtons second law (F=ma) will forever haunt us!
Elasticity of demand is an important variation on concept of Law of Demand. Demand can be classified as perfectly elastic, elastic, inelastic, unitary and perfectly inelastic. An elastic demand is one in which the change in quantity demanded due to a change in price is large. An inelastic demand is one in which the change in quantity demanded due to a change in price is small. An unitary demand is when quantity changes at the same rate as price.
When a mass is attached to the end of a spring the downward force the
According to Neumann, a force can be considered a push or pull that can produce, arrest or modify movement and can be measured as F=ma (Neumann, 2010). Force can also be considered the load. In regards to muscle contraction force relative to the joint, the force can be the internal force produced by the muscle itself, the force of gravity or the force of the particular load/weight. Torque is a cross product between force and the distance of the force from the fulcrum and is the ability of a force to cause rotation on a lever. Torque is a measure of how much a force acting on an
In the experiment these materials were used in the following ways. A piece of Veneer wood was used as the surface to pull the object over. Placed on top of this was a rectangular wood block weighing 0.148-kg (1.45 N/ 9.80 m/s/s). A string was attached to the wood block and then a loop was made at the end of the string so a Newton scale could be attached to determine the force. The block was placed on the Veneer and drug for about 0.6 m at a constant speed to determine the force needed to pull the block at a constant speed. The force was read off of the Newton scale, this was difficult because the scale was in motion pulling the object. To increase the mass weights were placed on the top of the ...
Kirkpatrick, Larry, and Gerald F. Wheeler. Physics: A World View. 4th ed. Orlando: Harcourt College Publishers, 2001.
In analyzing the force associated with a certain spring, whether it is in you pen or under your truck, Hooke’s Law applies.
F = ma : where F is force; m is the mass of the body; and a is the acceleration due to that particular force
The acceleration of a body or object is directly proportional to the net force acting on the body or object and is inversely
The acceleration of a body or object is directly proportional to the net force acting on the body or object and is inversely proportional to its mass. (F=ma)(Newman)
The second law is, “the relationship between an objects mass (m), its acceleration (a), and the applied force (f) is F= ma.” The heavier object requires more force to move an object, the same distance as light object. The equation gives us an exact relationship between Force, mass, and acceleration.