Examples of mechanical properties are elasticity, plasticity, strength, abrasion, hardness, ductility, brittleness, malleability and toughness.
What are the properties of solids Class 11?
- Introduction: A rigid body refers to a hard solid object having a definite shape and size.
- Deforming Force:
- Perfectly Elastic Body:
- Perfectly Plastic Body:
What is a solid class 11?
In a solid, atoms and molecules are arranged in such a way that each molecule is acted upon by the forces due to the neighbouring molecules. These forces are known as inter molecular forces.
What is K in mechanical properties of solids?
Bulk modulus of elasticity (B) It is the ratio of Hydraulic (compressive) stress (p) to the volumetric strain (ΔV/V) that is defined as Bulk modulus and is denoted by the symbol K.
What are the six properties of solids?
Definite shape, definite volume, definite melting point, high density, incompressibility, and low rate of diffusion.
What is a mechanical solid?
Solid mechanics, also known as mechanics of solids, is the branch of continuum mechanics that studies the behavior of solid materials, especially their motion and deformation under the action of forces, temperature changes, phase changes, and other external or internal agents.
What are the 9 properties of solid?
- Solids have fixed shape and fixed volume. Size of solids do not change and it occupies fixed space.
- Particles of Solid are closely bound.
- Solids do not take shape of container like liquids.
- Solids do not flow like liquids.
- Particles of solid cannot be compressed easily.
What is state Hooke’s law?
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 are the properties of solid give example?
Properties of Solid Solids have definite mass, volume and shape due to which it has a compact arrangement of constituent particles. The intermolecular distance between molecules is short. The rate of diffusion in solids is very low. Example of solids: eraser, book, ice, pencil etc.
What is called solid?
A solid is a state of matter that retains its shape and density when not confined.
What are the characteristics of solid?
- solid have a fixed shape and a fixed volume.
- solid cannot be compressed.
- solids have high density.
- force of attraction between the particles is very strong.
- The space between the particles of solids is negligible.
What is solid example?
An example of solids: solid ice, sugar, rock, wood, etc.
Do solids have tensile strength?
The mechanical properties of solids include strength, toughness, hardness, elasticity, plasticity, tensile strength, shear strength, brittleness, malleability, ductility, creep, resilience and fatigue.
What is plasticity in mechanical properties?
Plasticity is a mechanical property of materials that shows the ability to deform under stress without breaking while retaining the deformed shape after the load is lifted. Metals with higher plasticity are better for forming. This is evident in metal bending.
Which is more elastic steel or rubber?
The strain produced in rubber is much larger compared to that in steel. This means that steel has a larger value of Young’s modulus of elasticity and hence, steel has more elasticity than rubber.
What are the four types of solids?
There are four types of crystalline solids: ionic solids, molecular solids, network covalent solids and metallic solids.
What are 5 solid properties?
- Solid has a fixed shape and a fixed volume.
- Solid cannot be compressed.
- Solids have a high density.
- Force of attraction between the particles in a solid is very strong.
- The space between the particles of solids is negligible.
What are the three basic types of solids?
Molecular, ionic, and covalent solids all have one thing in common.
Why do we study solid mechanics?
Solid mechanics is the study of the deformation and motion of solid materials under the action of forces. It is one of the fundamental applied engineering sciences, in the sense that it is used to describe, explain and predict many of the physical phenomena around us.
What are solid materials?
Materials with tightly bound atoms or molecules, such as the crystals formed below melting temperature by most substances or simple compounds and the amorphous structures formed in glass and many polymer substances at sufficiently low temperature, are usually considered solids.
Who invented solid mechanics?
This theory was developed in preliminary form by Sophie Germain and was also worked on by Siméon-Denis Poisson in the early 1810s; they considered a flat plate as an elastic plane that resists curvature.
What are 10 characteristics of a solid?
- Definite mass, volume, and shape.
- Short Intermolecular distance.
- Strong Intermolecular Forces.
- The constituent particles remain fixed at their positions and can only oscillate about their mean positions.
- Solids are incompressible and rigid.
- High Density.
What are the two features of solids?
- Solids have definite shape and volume.
- Solids possess rigidity.
- They cannot be compressed.
- The particles are closely packed.
- They cannot flow.
What is Hooke’s Law and Young’s modulus?
Hooke’s law is a fondamental rule of thumb applied on skin that describes a direct proportionality link between the force applied on an object and the induced strain. Young’s Modulus is a constant coefficient stiffness*, named k, which describes how stiff is the skin or how likely it is to deform.
What is force constant?
A force constant defined as a second energy derivative relative to internal coordinates near the equilibrium position, Fij = d2E/dqidqj, is obtained most simply by the double differentiation in various points of the two-dimensional grid of qiand qjvalues. From: Vibrational Spectra and Structure, 1998.