1.In physics, motion is a change in position of an object with respect to time and its reference point. Motion is typically described in terms of displacement, direction, velocity, acceleration, and time. Motion

2. Rest, in physics, refers to an object being stationary relative to a particular frame of reference or another object. When the position of a body with respect to its surroundings does not change with respect to time it is said to be "at rest". REST 3. Types of Motion:- Uniform A body is said to have a uniform motion if it travels equal distances in equal intervals of time. Non-Uniform A body is said to have a non- uniform motion if it travels unequal distances in equal intervals of time, or equal distance in unequal interval of time. 4. UNIFORM MOTION 5. NON UNIFORM MOTION 6. Speed is the rate of change of the position of an object, eg.. 60 km/h Speed is a scalar physical quantity; only magnitude is required to define it. SPEED 7. Velocity is the rate of change of the position of an object with the specification of its direction too, e.g. 60 km/h to the north. Velocity is a vector physical quantity; both magnitude and direction are required to define it. VELOCITY 8. Acceleration, in physics, is the rate at which the velocity of an object changes over time. Acceleration 9. Types of Acceleration:- Uniform A body is said to have a uniform acceleration if there is equal change in the velocity of an object in equal amount of time. Non-Uniform A body is said to have a non-uniform acceleration if there is unequal change in the velocity of an object in equal amount of time. 10. The Graphical representation of motion is done to make our study of graphs more easier. Graphical Representation Of Motion 11. X-T Graph 12. V-T Graph 13. The equations of motion are a set of 3 equations that can be utilized to predict unknown information about an object's motion if other information is known. The 3 equations of motions are:- Equations Of Motion 14. Derivation of first equation of motion Slope of the v - t graph gives the acceleration of the moving object. Thus, acceleration = slope = AB = 15. Derivation of second equation of motion Distance = area of the trapezium ABDO S = area of rectangle ACDO + area of DABC 16. Derivation of third equation of motion Graphical Derivation of Third Equation S = area of the trapezium OABD. Substituting the value of t in equation (1) we get, As, 2aS = (v + u) (v - u) (v + u)(v - u) = 2aS [using the identity a2 - b2 = (a+b) (a-b)] 17. If an object is moving in a circular path it may have an uniform speed but not uniform velocity. Speed in circular motion is, Uniform Circlular Motion