Physics

Concept of Work If there is displacement of a body due to application of force only then work is done. For example, a book is…

One-dimensional Collision When the children play marbles, then if one marble collides with another marble and after the collision if the marbles move in a…

Gravity: The force of attraction between the earth and any other body is called gravity. It is the force that attracts a body toward the…

Inelastic collision An inelastic collision is a collision in which there is a loss of kinetic energy. While momentum of the system is conserved in…

Elastic Collision When collision occurs between atoms or molecules and electrons, protons, neutrons etc. then total kinetic energy remains constant. This type of collision may…

Application of Centripetal and Centrifugal Force: Motion of a cyclist along a curved path: During turning the cyclist automatically inclines toward inside i.e., towards the…

Collision Sudden and large change of motion of a body by force acting for a very short duration is called collision. When two objects hit…

Centrifugal force We know that for every body moving in a circular path a force act towards the centre of the circle i.e., a centripetal…

Centripetal force According to Newton’s first law due to inertia of motion a moving body always intends to move in a straight line with uniform…

Conservation of angular momentum From Newton’s first law for angular motion we know that change of angular velocity i.e., angular momentum occurs due to the…