Clarify the differences

A. Distance and displacement

B. Uniform and non-uniform motion.

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Solution

A.

Distance

Displacement

It is defined as the length of the actual path travelled by an object in motion.

It is defined as the shortest distance between the starting and finishing points.

It is a scalar quantity.

It is a vector quantity.

The values of distance are always
positive.

The values of displacement can be positive, negative or zero.

B.

Uniform motion Non-uniform motion

When an object covers equal distance in equal time interval, it is said to be in uniform motion. When an object covers unequal distance in equal time interval, it is said to be in non-uniform motion.

The distance-time graph obtained in case of uniform motion is a straight line graph. The distance-time graph obtained in case of non uniform motion can be of any shape depending on how the acceleration changes with time.

eg: A car running on a straight road without any change in its speed. eg: A car running on a road with different speeds in different interval of time.

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Similar questions

Give reasons:

(1) Distance and displacement are different concepts.

(2) An object at rest can be considered to have uniform motion.

(3) When a body falls freely to the ground, its motion has an uniform acceleration.

The displacement-time graph for a body with non-uniform motion is a _____.

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Distance	Displacement
It is defined as the length of the actual path travelled by an object in motion.	It is defined as the shortest distance between the starting and finishing points.
It is a scalar quantity.	It is a vector quantity.
The values of distance are always positive.	The values of displacement can be positive, negative or zero.

Uniform motion	Non-uniform motion
When an object covers equal distance in equal time interval, it is said to be in uniform motion.	When an object covers unequal distance in equal time interval, it is said to be in non-uniform motion.
The distance-time graph obtained in case of uniform motion is a straight line graph.	The distance-time graph obtained in case of non uniform motion can be of any shape depending on how the acceleration changes with time.
eg: A car running on a straight road without any change in its speed.	eg: A car running on a road with different speeds in different interval of time.