“Work” and “energy” are two terms we often hear and use in our daily lives. Work is a type of activity that involves a certain amount of physical as well as mental effort. To perform any work, you need energy. However, work and energy are not defined in such a way in physics. For example, […]
Dimensional Formula of Work Read More »
Class 11, IIT JEE, Physics, Work-energy theorem, Work, Energy, and PowerIntroduction The only way of defining energy is the capability to do work. There are mainly several forms of work, involving electrical work, mechanical work, and work in any gravitational or magnetic field. Work SI unit is the joule. The experts of physics and chemistry see work as a relation to energy. If there is
In a game of billiards, balls collide with each other at a certain speed. This action of two bodies coming in contact with each other due to an external force is called a collision. But what happens after a collision? Why does the momentum of one ball decrease while that of the other ball increases?
Velocities of Colliding Bodies after Collision in 1-Dimension Read More »
Class 11, IIT JEE, Laws of Motion, Newton’s laws of motion, PhysicsNewton’s second law of motion states the relationship between the mass of an object, its acceleration and the net force acting on it. But this law cannot be applied to some objects that gain or lose weight when they are in motion. Another equation needs to be derived for such objects with the help of
Variable Mass System Read More »
Class 11, IIT JEE, Laws of Motion, Newton’s laws of motion, PhysicsIntroduction Everyone well understands the rate at which the velocity of a body varies concerning time. It might be challenging to comprehend how an attribute characterised by a rate of change can be regarded as uniform in some instances. Because consistency in acceleration is so important, let us examine it thoroughly, mainly because it is
Uniformly accelerated motion Read More »
Class 11, IIT JEE, Laws of Motion, Newton’s laws of motion, PhysicsMeaning Things around us, such as the movements of a clock’s hands, the rotation of blades of a ceiling fan, the direction of a ball, the movement of an asteroid, and the earth’s rotation and revolution, are some examples of uniform motion. More precisely, uniform motion is the motion of an item in which the
A force is a push or pull that occurs as a result of one object’s interaction with another object. Forces come in a variety of shapes and sizes. Earlier in this lesson, a number of force types were classified into two categories based on whether the force was caused by touch or non-contact between the
An accident usually involves colliding two bodies while we can see the world because photons, the particles of light, collide with objects and then come back to our eyes. In physics, a collision can be classified into different types of collisions based on the total energy of the system and the change in direction. A
Types of Collisions Read More »
Class 11, IIT JEE, Laws of Motion, Newton’s laws of motion, PhysicsTorricelli’s theorem, also known as Torricelli’s law, Torricelli’s principle, or Torricelli’s equation, states that the speed, v, of a liquid flowing under gravity out of an opening in a tank is proportional to the square root of the vertical distance, h, between the liquid surface and the centre of the opening and the square root
When you were little, did you love floating around in pools? Have you ever seen a child’s face light up when he sees his small toys floating in the water? He has a lot of fun with them and plays a lot of games with them! Have you ever been curious about how objects float
