Study MaterialsCBSE NotesMotion Class 9 Notes Science Chapter 8

Motion Class 9 Notes Science Chapter 8

Motion Class 9 Notes – Here We have provided summary and revision notes for Class 9 Science Chapter 8. This CBSE notes contains CBSE Key Notes, CBSE Revision Notes, Short Key Notes, images, diagrams of the complete Chapter 8 titled Motion of Science taught in class 9. If you are a student of class 9 who is using NCERT Textbook to study Science, then you must come across Chapter 8 Motion. After you have studied lesson, you must be looking for notes to memorize. Here you can get complete Chapter 8 Motion class 9 notes in one place.

CBSE Class 9 Science Notes Chapter 8 Motion Pdf free download for Quick Revision. Here we have given NCERT Class 9 Science Notes Chapter 8 Motion.

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    CBSE Class 9 Science Notes Chapter 8 Motion

    Facts that Matter

    An object is said to be in motion when its position changes with time.

    We describe the location of an object by specifying a reference point. Motion is relative. The total path covered by an object is said to be the distance travelled by it.

    The shortest path/distance measured from the initial to the final position of an object is known as the displacement.

    Uniform motion: When an object covers equal distances in equal intervals of time, it is said to be in uniform motion.

    Non-uniform motion: Motions where objects cover unequal distances in equal intervals of time.

    Speed: The distance travelled by an object in unit time is referred to as speed. Its unit is m/s.

    Average speed: For non-uniform motion, the average speed of an object is obtained by dividing the total distance travelled by an object by the total time taken.
    motion-cbse-notes-class-9-science-1

    Velocity: Velocity is the speed of an object moving indefinite direction. S.I. unit is m/s.
    motion-cbse-notes-class-9-science-2

    Acceleration: Change in the velocity of an object per unit time.
    motion-cbse-notes-class-9-science-3

    Graphical representation of motions
    (i) Distance-time graph
    For a distance-time graph, time is taken on x-axis and distance is taken on the y-axis.
    [Note: All independent quantities are taken along the x-axis and dependent quantities are taken along the y-axis.] motion-cbse-notes-class-9-science-4
    (ii) Velocity-time graph
    motion-cbse-notes-class-9-science-5
    Equation of motion by graphical methods
    (i)velocity-time relation:
    motion-cbse-notes-class-9-science-6
    motion-cbse-notes-class-9-science-7
    motion-cbse-notes-class-9-science-8
    (ii) The equation for position-time relation:
    motion-cbse-notes-class-9-science-9
    motion-cbse-notes-class-9-science-10
    (iii) Equation for position-velocity relation:
    motion-cbse-notes-class-9-science-11
    motion-cbse-notes-class-9-science-12
    Uniform circular motion: When a body moves in a circular path with uniform speed, its . motion is called uniform circular motion.

    We hope the given CBSE Class 9 Science Notes Chapter 8 Motion Pdf free download will help you. If you have any query regarding NCERT Class 9 Science Notes Chapter 8 Motion, drop a comment below and we will get back to you at the earliest.

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