In physics, elasticity (from Greek ?λαστός “ductible”) is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. If the material is elastic, the object will return to its initial shape and size when these forces are removed.
Elasticity is the tendency of solid materials to return to their original shape after forces are applied on them. When the forces are removed, the object will return to its initial shape and size if the material is elastic.
Furthermore, what is elastic property? The bulk elastic properties of a material determine how much it will compress under a given amount of external pressure. The ratio of the change in pressure to the fractional volume compression is called the bulk modulus of the material. The amount of compression of solids and liquids is seen to be very small.
Also to know is, what is meant by the elastic limit of an object?
Elastic limit, maximum stress or force per unit area within a solid material that can arise before the onset of permanent deformation. When stresses up to the elastic limit are removed, the material resumes its original size and shape. Stresses beyond the elastic limit cause a material to yield or flow.
What objects have elastic energy?
Many objects are designed specifically to store elastic potential energy, for example:
- The coil spring of a wind-up clock.
- An archer’s stretched bow.
- A bent diving board, just before a divers jump.
- The twisted rubber band which powers a toy airplane.
- A bouncy ball, compressed at the moment it bounces off a brick wall.
Is water an elastic fluid?
In literature: All highly elastic fluids are called gases. From this view it is evident that the specific heat of elastic fluids can only be considered as approximately determined. In swimming we have the elastic fluid, water, to overcome by means of arm and leg movements.
Are all materials elastic?
The perfect elastic body is an ideal concept only. Most materials which possess elasticity in practice remain purely elastic only up to very small deformations. In engineering, the amount of elasticity of a material is determined by two types of material parameter.
Is glass elastic or plastic?
Glass is more elastic than rubber because for a given applied force per unit area, the strain produced in glass is much smaller than produced in rubber.
Is water elastic physics?
Water is more elastic than air. The reciprocal of bulk modulus of elasticity is compressibility of a substance. And, air is more compressible than water and so it has less elasticity than water.
What is an elastic medium?
A medium such as air or water , which can change its shape as a result of deforming force, and which returns to its original shape after the removal of deforming force.
What does Hooke’s law state?
Hooke’s law, law of elasticity discovered by the English scientist Robert Hooke in 1660, which states that, for relatively small deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load.
What the most elastic?
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What is the unit of strain?
Strain (Deformation) Note that strain is a dimensionless unit since it is the ratio of two lengths. But it also common practice to state it as the ratio of two length units – like m/m or in/in.
What do you mean by force?
In science, force is the push or pull on an object with mass that causes it to change velocity (to accelerate). Force represents as a vector, which means it has both magnitude and direction.
What is the formula of strain?
Strain is simply the measure of how much an object is stretched or deformed. Strain occurs when force is applied to an object. Strain deals mostly with the change in length of the object. Strain = Δ L L = Change in Length Original Length .
Which one has maximum elastic limit?
Elastic limit is defined as the maximum stress that a material can withstand before the permanent deformation. It is the highest limit of the material before plastic deformation of the material can occur. Once the stress or force is removed from the material, the material comes back to its original shape.
What is the limit of proportionality?
The limit of proportionality is the is the point beyond which Hooke’s law is no longer true when stretching a material. The elastic limit is the point beyond which the material you are stretching becomes permanently stretched so that the material does not return to its original length when the force is removed.
Which is more elastic rubber or plastic?
Rubber is neither plastic nor elastic. The basic explanations for plastic, elastic and inelastic deformations is written below, for a better understanding: PLASTIC DEFORMATION: On release of the applied load (load > yield strength), the material does not go back to its original shape (partially or completely).