Class 11 Physics, Chapter – 18, Wave Motion Introduction : If we through a stone in a quiet pond, we can observe the following shape. It may be considered as wave. If one person say Read more…
Class 11 Physics, Chapter – 16, Thermodynamics Introduction : When we rub our palms, it gets warmer due to conversion of mechanical work done to heat energy. Why is the palms not to get warmer Read more…
Chapter – 15, Surface Tension Above pictures are the phenomena related to surface tension. Let us understand that what internal force is before knowing about the surface tension. Inter Molecular Force : The force Read more…
Chapter – 14, Thermal Properties Of Matter Heat : It is a form of energy. It flows from higher temperature region to lower temperature region. That it flows due to temperature difference of two objects. Read more…
Chapter – 13, Fluid Motion The substance that can flow is called as fluid. For example, the liquids and gasses. Volume of the fluid : The space occupied by the fluid is called as its Read more…
Chapter – 12, Elasticity Introduction : In our daily life, there are some objects whose shapes, volume and length may be changed permanently or temporarily by applying external force. After removal of the applied force, the Read more…
Chapter – 11, Gravitation Gravitational Force : The force of attraction between two point masses is called as Gravitational force. Gravity : The gravitational force due to the the gravitational field of the earth by Read more…
Chapter – 10, Work, Power and Energy Definition Of Work : When a force is applied on an object to displace it from its initial position then it is said to be work is done. Read more…
Chapter 8, Friction Frictional force : It is contact force which resists the relative motion of solid surface, fluid layers and material elements sliding against each other. Discussion : In daily life, we observe that Read more…
Chapter – 9, Circular Motion The motion along circular track is called circular motion. Like moving car at turning point, motion of a fan, motion of planet on its orbit etc. Some important terminology : Read more…