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MOTION(PHYSICS)

It is a full explantion of chapter motion of class 9th

Sinchana
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MOTION(PHYSICS)

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  1. MOTION

  2. MOTION AND REST MOTION AN OBJECT IS SAID TO BE AT MOTION IF THE POSITION OF THE OBJECT IS CHANGING WITH RESPECT TO THE STATIONARY OBJECT , THE IT IS CALLED AS  MOTION  REST AN OBJECT IS SAID TO BE AT REST IF  THE POSITION OF THE OBJECT NOT CHANGING WITH  RESPECT TO THE STATIONRY OBJECT IS SAID TO BE AT REST 

  3. DISTANCE AND DISPLACMENT DISPLACEMENT SHORTEST DISTANCE COVERD BY AN OBJECT IS CALLED AS DISPLACEMENT  STANDARD UNIT OF DISPLACEMENT IS METER DISTANCE CAN BE ZERO , NEGETIVE OR POSITIVE  DISPLACEMENT IS VECTOR QUANTITY  DISTANCE ACTUAL LENGTH COVERED BY AN OBJECT IS CALLED AS DISTANCE  STANDARD UNIT OF DISTANCE IS METER DISTANCE CANNOT BE NEGETIVE  DISTANCE IS SCALAR QUANTITY

  4. Speed

  5. SPEED AND VELOCITY VELOCITY DISPLACEMENT PER UNIT OF TIME BY A BODY  VELOCITY IS VECTOR QUANTITY VELOCITY CAN BE ZERO, POSITIVE OR NEGETIVE  STANDAT UNIT OF VELOCITY IS M/S VELOCITY = DISPLACEMENT                             TIME TAKEN  AVEREGE VELOCITY =DISPLACEMENT                                        TIME TAKEN  SPEED DISTANCE TRAVELLED PER UNIT TIME BT A BODY  SPPED IS A SCALAR QUANTITY SPPED IS ALWAYS POSITIVE  STANDARD UNIT OF SPPED IS m/s SPPED=DISTANCE TRAVELLED                    TIME TAKEN  AVERAGE SPEED= DISTANCETRAVELLED               TIME TAKEN 

  6. Velocity

  7. UNIFORMANDNON- UNIFORM ACCELARATION  • EQUAL CHANGE IN VELOCITY IN EQUAL INTERVAL OF TIME IS CALLED AS  UNIFORM ACCELARATION • UNEQUAL CHANGE OF VELOCITY IN EQUAL INTERVAL OF TIME IS CALLED AS NON – UNIFORM  ACCELARATION

  8. ACCELARATION THE RATE OF CHANGE OF VELOCITY IS CALLED AS ACCELARATION    ACCELARATION=CHANGE IN VELOCITY  TIME TAKEN       CHANGE IN VELOCITY =  FINAL VELOCITY – INTIAL VELOCITY TIME TAKEN

  9. Accelaration

  10. Velocity -  timegraph If the graph is drawn by taking time on x-axix and speed or velocity on y axis , then the graph is know as speed-time graph or velocity – time graph 

  11. FROM SINCHANA  K.Y  9th   A                            TO: JNV MANDYA  PHYSICS                                             TEACHER 

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