CBSE Class 7 Science All Chapters Worksheet

CBSE Class 7 Science - All Chapters

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MODULE – 5 & 6

TUTORIAL

MOTION AND TIME

A body is said to be at rest if it does not change its position wrt its surroundings with the passage of time.

A body is said to be in motion if it changes its position or direction wrt its surroundings with the period of time.

Speed: - Distances covered by a body in a unit time is speed. Its SI unit is m/s.

Uniform Motion: - When an object covers the same distance in each unit of time, it is said to be moving with the constant speed or in uniform motion.

The graph of uniform motion will have the following characteristics: -

 Motion is represented by a straight line.

 The steeper the line, the greater the speed.

Non-Uniform Motion: - If a body covers unequal distance in equal intervals of time, it is said to be in non-uniform motion. E.g. Movement of child on road, movement of a butterfl

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