Question

1. Distinguish uniform and non-uniform motion with an example.( class 9)

Answer 1

Answer:

Difference between Uniform and Non uniform motion with examples

Uniform motion

• In Uniform motion, movement of a body is along the straight line with constant speed.
• In uniform motion, body covers equal distance in equal interval of time.
• Speed of the object is similar to the actual speed.
• The graph between distance and time (distance-time) graph shows the straight line.
• This type of motion has zero acceleration.

Non-Uniform

• In non uniform motion, movement of a body is along the straight line with variable speed.
• In this type of motion, the body does not cover the equal distance in equal interval of time.
• Speed of the object is different from the actual speed.
• The graph between distance and time (distance-time) graph shows the curved line.
• It has no zero acceleration.

Examples of uniform motion

• Car going along a straight road at a constant speed
• The train going along the tracks at a constant speed
• The movement of the fan
• Vibrating spring in a sewing machine
• Cooling fan running at a fixed speed

Examples of non uniform motion

• The movement of an asteroid
• Car coming to a halt
• A bouncing ball
• The train coming to its terminating sop
• Dragging a box from a rough surface

Hope it helps you!!!!

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Answer 2

Explanation:

uniform motion = This type of motion is defined as the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.

example.1. If the speed of a car is 10 m/s, it means that the car covers 10 meters in one second. The speed is constant in every second.

2.Movement of blades of a ceiling fan.

non-uniform motion = This type of motion is defined as the motion of an object in which the object travels with varied speed and it does not cover same distance in equal time intervals, irrespective of the time interval duration.

example. 1.If a car covers 10 meters in first two seconds, and 15 meters in next two seconds.

2.The motion of a train.