om every how train will cover a 300 km distance. Lifts in all be motion. Escalators in metro stations and malls also have uniforme A body that moves with changing speed along a straight line the non-uniform motion. A body with non-uniform motion covers unequalche intervals. For example, if a train covers 100 km in its first hour of its you second hour of the journey, it is said to be moving at non-uniform speeds. Speed dat aeroplanes keeps changing during their journey. All these bodies thus have non- Check Point a. ors can 1. Fill in the blanks. Motion is a change in Heatboat b. Speed is a ratio of c. Whether a motion is slow or fast depends on and 2. Match the correct answer. a. speedometer oscillations b. uniform motion ii. variable speed odometer ii. measuring speed d. non-uniform motion tv. constant speed v. measuring distance 3. Name the device used for measuring speed in a car. 4. Differentiate between uniform and non-uniform motion. 5. What is the speed of light? C. e. Pendulum the GRAPHICAL REPRESENTATION OF MOTION To know the complete information about the motion of a body we need to know how much d it covers after each small interval of time. Such information can be recorded using a clock
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Answer:
body is said to be in uniform motion if its velocity does not change with time. For a body in uniform motion, net external force is always equal to zero. An example of uniform motion is a body sliding on a frictionless surface with a constant velocity. A body is said to have non-uniform motion if its velocity changes with time. Such a body is necessarily under the influence of an external force. An example of non-uniform motion is a body rotating at a constant speed. Its velocity is
Uniform motion
A body is said to be in uniform motion if its velocity does not change with time. For a body in uniform motion, net external force is always equal to zero. An example of uniform motion is a body sliding on a frictionless surface with a constant velocity.
DEFINITION
Non-uniform Motion
Difference between uniform and non-uniform motion
Uniform Motion Non-Uniform Motion
When an object travels equal distance in equal interval of time . When an object travels unequal distance in equal interval of time.
For example : If a car covers equal distance of 500m in the interval of 2 minutes. For example : Motion of car on a crowded road when it covers unequal distance in equal interval of time.