What is MotionWhen a body does not change its position with time, we can say that the body is at rest, while if a body changes its position with time, it is said to be in motion.Analysing Linear Motion Linear motion is motion in a straight line.Non-line…

Circular MotionWhen a body moves in such a way that its distance from a fixed point always remains constant, then its motion is said to be the circular motion.Uniform circular motion: If the radius vector sweeps out equal angles in equal times, then its…

Equations Of MotionMotion under uniform acceleration1st Equation of motion For an object moving with uniform velocity, v, its displacement, s after time, t is given by: s = v × t Consider a body having initial velocity ‘u’. Suppose it is subjected to a u…

What Is Acceleration Rate of change of velocity is called acceleration. It is a vector quantity \(i.e.\text{    }a=\frac{v-u}{t}\) where u is the initial velocity of the object, v is its final velocity and t is the time taken.Unit of acceleration = m/s2 …

What Is Distance And Displacement In Physics The path length between the initial and final positions of the particle gives the distance covered by the particle. Distance is defined as the total length of the path travelled from one location to another.Th…

Difference Between Speed And VelocityThe ‘distance’ travelled by a body in unit time interval is called its speed. When the position of a body changes in particular direction, then speed is denoted by ‘velocity’. i.e. the rate of change of displacement …

Measurement of Time Using Periodic MotionAny object that is moving is said to be in motion. In order to measure time, we need a motion that repeats itself in equal intervals. Such a motion is called periodic motion.Some examples of periodic motion are th…