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. ...