Question

Define uniform motion and a non-uniform motion also state two example of each

Answer 1

Answer:

Uniform Motion

A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals may be. If we draw distance time graph for uniform motion then it will be straight line. For better understanding we can take an example, a car is running at a constant speed say 20 metres per second, will cover equal distances of 20 metres, every second, so its motion will be uniform.

Non-Uniform Motion

A body is said to be in a non-uniform motion if it travels unequal distances in equal intervals of time. For example, if we drop a ball from the roof of a tall building, we will notice that it will cover unequal distances in equal intervals of time. Like, 5 metres in the 1st second, 15 metres in the 2nd second and so on. Thus, a freely falling ball will covers smaller distances in the first ‘1 second’ and larger distances in the later ‘1 second’ intervals. Therefore, we can say that the motion of a freely falling body is an example of a non-uniform motion. The distance-time graph of the non-uniform motion is a curved line. Non-Uniform motion is also known as accelerated motion.

More examples of Uniform motion are:

Movement of hands of a watch, Rotation and revolution of the earth, Movement of the blades of a ceiling fan etc.

More examples of non-uniform motion are:

Oscillation of pendulum, the motion of a train, a person jogging in the park etc.

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Answer 2

Answer:

uniform motion: if a particle covers equal distance in same time interval , then it's motion is called uniform motion.

Example: 1) if aan object covers 7 meter distance in such a way that one second is required to cover one metre such motion is called uniform motion.

2) The speedometer of a motorbike shows same speed when bike running on a straight road.

Non uniform motion: if a particle covers same

distance in different time interval, then it's motion is called non - uniform motion.

Example: 1) If an object covers 5 metre distance in such a way that different time is required to cover one metre distance such motion is called non- uniform motion.

2) If an object move for 10 sec in such a manner that for each second it's movement is different, then such motion is called non- uniform motion