A collision is an event where two or more bodies exert forces on each other for a relatively short time. Collisions can be elastic or inelastic, depending on whether kinetic energy is conserved. They play a crucial role in physics, ...
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Velocity is a vector quantity that measures the rate of change of an object’s position with respect to time. It includes both speed and direction. Unlike speed, which is scalar, velocity provides information about the object’s direction of motion. It ...
Energy is the capacity to do work or produce change. It exists in various forms including kinetic energy thermal energy potential energy and chemical energy. Energy can be transformed from one form to another but cannot be created or destroyed ...
A pulley is a simple machine consisting of a wheel with a rope or chain that passes over it. It changes the direction of force applied to lift heavy objects. Pulleys can be used individually or in systems to reduce ...
Gravity is the force of attraction between two masses. It governs the motion of celestial bodies and keeps planets in orbit around stars. On Earth, gravity gives weight to objects and causes them to fall towards the ground when dropped. ...
A turbine is a mechanical device that converts fluid energy into mechanical energy. It operates by utilizing the flow of liquids or gases to rotate blades, generating rotational motion. Turbines are widely used in power generation, such as hydroelectric plants ...
Potential energy is the stored energy in an object due to its position or configuration. It is primarily associated with gravitational force, elastic materials, and electric charges. The higher an object is positioned or the more it is stretched, the ...
Speed is a scalar quantity that measures how quickly an object moves. It is defined as the distance traveled per unit of time. Speed can be constant or variable, depending on the motion of the object. Common units of speed ...
The joule is the SI unit of energy, work, and heat. It is defined as the amount of energy transferred when a force of one newton acts through a distance of one meter. The joule is also used to measure ...
Momentum is the quantity of motion possessed by a moving body, determined by the product of its mass and velocity. It is a vector quantity with both magnitude and direction and is conserved in isolated systems during collisions or interactions, ...