Chapter No. 7 Motion & Types Motion Std – 6th Sub –G. Science Chapter No. 7 Motion & Types Motion

Types of Motion a)Uniform linear b) non-uniform linear motion. 2)Oscillatory motion . 3)Periodic motion . 4)Random motion. 5)Circular motion

LINEAR MOTION Motion in only one direction is called linear motion . e.g. motion of bullock cart 2. line of ants

1)LINEAR MOTION Uniform Linear Motin Non Uniform Linear Motion e.g. soldiers marching in e.g. girl on slide come down with parade. great speed.

2) Oscillatory Motion A back & forth repetitive motion is called oscillatory motion. e.g. 1)motion of swing 2) movement of birds wings

3) Periodic motion When a moving object passes through a certain point at regular intervals of time , its motion is called periodic motion . e.g. 1)motion of hands of clock 2)motion of the earth around the sun

4) Random Motion Motion whose direction changes continuously is called random motion . e.g.1)A butterfly flits from 2)motion of football players flower to flower

5) Circular Motion Motion along a circumference of circle is called circular motion. e.g. 1)merry go round 2) motion of electric fan

Speed The speed of an object is the distance it travels in a unit of time . Speed = distance travelled time taken to travel the distance Units of Speed in MKS system m/sec CGS system cm/sec