2. A CAR OR BUS MOVES ON A ROAD , A TRAIN MOVES ON
THE TRACK , A SHIP MOVES IN WATER AND AN AEROPLANE
MOVES WHEN IT FLIES IN AIR FROM ONE PLACE TO
ANOTHER . THE MOVEMANT OF A BODY IS CALLED MOTION .
A COMMON CHARACTERISTIC OF ALL THE MOVING BODIES
IS THAT THEY CHANGE THEIR POSITION WITH TIME .
A BODY IS SAID TO BE IN MOTION WHEN ITS POSITION
CHANGES CONTINUOUSLY WTH RESPECT TO A STATIONARY
OBJECT TAKEN.FOR EXAMPLE: WHEN A POSITION OF A CAR
CHANGES CONTINOUSLY WITH RESPECT TO STATIONARY
OBJECTS LIKE HOUSES AND TREES , ETC.
3. DISTANCES OF 10 A BODY HAS A UNIFORM MOTION IF IT TRAVELS
EQUAL DISTANCES IN EQUAL INTERVALS OF TIME . FOR EXAMPLE – A
CAR RUNNING AT A CONSTANT SPEED OF SAY, 10 METERS PER
SECOND, WILL COVER EQUAL METERS,EVERY SECOND,SO ITS MOTION
WILL BE UNIFORM.
A BODY HAS A NON- UNIFORM MOTION IF IT TRAVELS
UNEQUAL INTERVAL DISTANCES IN EQUAL INTERVALS OF
TIME.FOR EXAMPLE- IF WE DROP A BALL FROM THE ROOF OF
A TALL BUILDING, WE WILL FIND THAT IT COVERS UNEQUAL
DISTANCES IN EQUAL INTERVALS OF TIME .
