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ASPhysicsCIERevision Notes2. Kinematics2.1 Equations of Motion2.1.1 Displacement, Velocity & Acceleration

Displacement, Velocity & Acceleration (CIE AS Physics)

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Katie M

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Defining Displacement, Velocity & Acceleration

Scalar quantities

  • Scalar quantities only have a magnitude (or size)
    • Distance: the total length between two points
    • Speed: the total distance travelled per unit of time

Vector quantities

  • Vector quantities have both magnitude and direction
    • Displacement: the distance of an object from a fixed point in a specified direction
    • Velocity: the rate of change of displacement of an object
    • Acceleration: the rate of change of velocity of an object

Equations

Equation Definitions, downloadable AS & A Level Physics revision notes

Equations linking displacement, velocity and acceleration

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    Katie M

    Author: Katie M

    Expertise: Physics

    Katie has always been passionate about the sciences, and completed a degree in Astrophysics at Sheffield University. She decided that she wanted to inspire other young people, so moved to Bristol to complete a PGCE in Secondary Science. She particularly loves creating fun and absorbing materials to help students achieve their exam potential.