Categories
Physical Chemistry

Properties of Substance

Science > Chemistry > Introduction to Chemistry > Properties of Substance All matter has physical and chemical properties. Extensive properties are those properties of a substance which depend on the amount of substance. They vary with the amount of the substance. Examples: Mass, weight, and volume. Intensive properties are those properties of a substance which do not depend […]

Categories
Physics

Concept of Strain Energy

Science > Physics > Elasticity > Concept of Strain Energy In this article, we shall study, work done in stretching wire and the concept of strain energy. Work done in Stretching a Wire: Consider a wire of length ‘L’ and area of cross-section ‘A’ be fixed at one end and stretched by suspending a load […]

Categories
Physics

Shear Stress, Shear Strain, and Modulus of Rigidity

Science > Physics > Elasticity > Shear Stress, Shear Strain, and Modulus of Rigidity In this article, we shall study the concept of shear stress, shear strain, and modulus of rigidity. Shear Stress: When the deforming forces are such that there is a change in the shape of the body, then the stress produced is […]

Categories
Physics

Behaviour of Ductile Material With Increasing Load

Science > Physics > Elasticity > Behaviour of Ductile Material With Increasing Load In this article, we shall study the construction and use of Searle’s apparatus to find Young’s modulus of wire and behaviour of ductile material of wire under increasing load. Searle’s Experiment: Apparatus : Two identical wires A and B are suspended from […]

Categories
Physics

Stresses and Strains in Compound Wires

Science > Physics > Elasticity > Stresses and Strains in Compound Wires Problem – 1: For two wires of the same material, both the radii and lengths are in the ratio 1:2. What should be the ratio of stretching forces on the wires if equal extensions are to be produced in the two? Given: Ratio of […]

Categories
Physics

Bulk Modulus of Elasticity

Science > Physics > Elasticity > Volumetric Stress, Bulk Modulus of Elasticity In this article, we shall study the concept of volumetric stress, volumetric strain, and bulk modulus of elasticity. Volumetric stress: When the deforming forces are such that there is a change in the volume of the body, then the stress produced in the […]

Categories
Physics

Numerical Problems on Poisson’s Ratio

Science > Physics > Elasticity > Numerical Problems on Poisson’s Ratio In this article, we shall study the concept of poisson’s ratio and numerical problems on it. The concept of this constant (Poisson,s ratio) was introduced by physicist Simeon Poisson. When a rod or wire is subjected to tensile stress, its length increases in the […]

Categories
Physics

Numerical Problems on Stress, Strain, and Young’s Modulus

Science > Physics > Elasticity > Numerical Problems on Stress, Strain, and Young’s Modulus In this article, we shall study concept application and numerical problems on longitudinal stress, longitudinal strain, Young’s modulus of elasticity. Conversion Factors: From To Factor mm m x 10-3 cm m x 10-2 m mm x 103 m cm x 102 […]

Categories
Physics

Longitudinal Stress and Strain

Science > Physics > Elasticity > Longitudinal Stress and Strain In this article, we shall study the concept of stress, strain, and modulus of elasticity. Main focus will be on longitudinal stress, longitudinal strain, and Young’s modulus of elasticity. Concept of Stress: The net internal elastic force (restoring force) acting per unit area of the […]

Categories
Physics

Classification of Materials

Science > Physics > Elasticity > Classification of Materials In this article, we shall study the deformation in the body due to the application of deforming force and classification of materials on this behaviour. Effects of Applied Force on a Body: If the forces acting on a body are unbalanced i.e. the resultant force acting […]