Comparison of intensities of the fundamental force Comparison of relative strength of the four fundamental forces shows that strongest force is the strong nuclear force and the weakest one is the gravitational force. There are…

Weak nuclear force: There are some elements found in nature which disintegrate spontaneously (for example; uranium, thorium etc). These nuclei are called radioactive nuclei. Three different types of rays or particles are emitted from radioactive…

Strong nuclear force: The strong nuclear force is one of the four fundamental forces in nature; the other three are gravity, electromagnetism and the weak force. The strong force is the force that holds the…

Electromagnetic Force: A kind of force exists between two charged bodies and between two magnetic materials. These are called Coulomb’s electric force and magnetic force respectively. Electric and magnetic force can either be attractive or…

Gravitational Force: In the universe, there exists a force of attraction between any two particles or objects. The force of gravity is the force with which the earth, moon, or other massively large object attracts…

Uniform Circular Motion If you hold one end of a thread that has a stone fastened at the other end and if you rotate the thread over your head, you will see that the stone…

Laws of Falling Bodies We know the reason behind the falling of the stone or paper is due to gravitational attraction. As acceleration due to gravity does not depend on mass then why the piece…

Equation of motion of a horizontal projectile Let an object be thrown from a point O with velocity v0 along the horizontal direction [Figure]. If we ignore air resistance and consider g constant, then along…

Trajectory of Projectile Motion is a Parabola If you go to a stadium to enjoy cricket game then you will see that the cricket ball thrown from the boundary is seen to be ascending first…

Velocity–Time graphs present the motion of an element by presentation the changes of velocity with reference to time. The law is that the slope of the line on a velocity-time graph reveals practical information about…