9th grade - physics

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Cards (23)

  • Speed
    Rate of an object, a scalar quantity (has magnitude but no direction)
  • Speed
    • Unit is m/s
    • d (meter) and t (second)
  • Velocity
    Speed of something in a given direction, a vector quantity (has magnitude and direction)
  • Displacement
    Change in position, shortest distance between initial and final position
  • Distance
    Total length of travel, not necessarily the shortest path
  • Reference point
    The original position
  • Acceleration Formula

    a= vf-vi
    t
  • Uniformly Accelerated Motion

    when objects remained constant irrespective of time.
  • Final Velocity formula
    vi + at
  • Distance formula
    d = vit + 1/2 at²
  • Unit of Final Velocity
    m/s
  • Unit of Initial Velocity
    m/s
  • Unit of Acceleration
    m/s²
  • Unit of Time
    s
  • Unit of displacement/distance
    m
  • Free Fall
    when object is acted upon the influence of gravity
  • Momentum
    defined as “mass in motion”
    all objects have mass; so if an object is moving, then it has momentum
  • Tri formula for speed
    D
    ST
  • Tri formula for Velocity

    D
    VT
  • P M V meaning
    P = momentum
    M = mass
    V = velocity
  • Impulse
    force applied to an object for a certain amount of time
  • Impulse formula
    Impulse = force x time
    J = f • t
  • Unit for Impulse
    N.s