Motion

To describe the location of

To describe the location of an object, we need a reference point called the origin. For example, if a school is 2 km north of a railway station, the r

Distance is the total path length

Distance is the total path length covered by an object (scalar quantity - only magnitude). Displacement is the shortest distance from initial to final

Speed is the distance covered per

Speed is the distance covered per unit time (v = s/t). Velocity is displacement per unit time and includes direction. Average speed = Total distance/T

Uniform motion

Uniform motion: Object covers equal distances in equal time intervals. Non-uniform motion: Object covers unequal distances in equal time intervals. Mo

Acceleration is the rate of change

Acceleration is the rate of change of velocity (a = (v-u)/t). It can be positive (speeding up) or negative (slowing down). Uniform acceleration means