Physics Chapter on Forces and Motion

Motion and Forces

• Displacement: Refers to the change in position of an object from an initial point to a final point, considering both distance and direction.
• Friction: The force that opposes the relative motion of two surfaces in contact, acting to resist sliding or rolling motion, often converting kinetic energy into thermal energy.
• Gravity: Describes the force of attraction between two objects due to their mass, which affects all matter and governs the motion of celestial bodies.
• Reference Point: A fixed point used as a benchmark to determine the position or motion of an object, crucial for understanding spatial relationships and movement.
• Velocity: Defined as the rate of change of position of an object, which includes both speed and direction, providing a complete description of motion.