Skip to main content
Back

Motion Analysis definitions

Control buttons has been changed to "navigation" mode.
1/15
  • Derivative

    A mathematical tool that measures how a quantity changes with respect to another, often used to analyze rates in motion.
  • Position Function

    A formula that gives the location of an object at any moment, typically expressed in terms of time.
  • Velocity

    A measure of how fast and in what direction an object's position changes, found as the first derivative of position.
  • Acceleration

    A measure of how quickly velocity changes, calculated as the first derivative of velocity or the second derivative of position.
  • Displacement

    The net change in position over a time interval, found by subtracting initial from final position.
  • Average Velocity

    The total change in position divided by the total change in time, representing the slope of a secant line.
  • Instantaneous Velocity

    The rate of change of position at a specific moment, represented by the slope of a tangent line.
  • Speed

    The magnitude of velocity, always non-negative, found by taking the absolute value of velocity.
  • Time Interval

    A span between two time points, used to calculate changes in position, velocity, or acceleration.
  • Secant Line

    A straight line connecting two points on a curve, used to represent average rates like average velocity.
  • Tangent Line

    A straight line that touches a curve at one point, representing the instantaneous rate of change.
  • Power Rule

    A differentiation technique where the exponent is multiplied by the coefficient and reduced by one.
  • Units

    Standard quantities used to specify measurements, such as meters per second for velocity or meters per second squared for acceleration.
  • Slope

    A measure of steepness, representing the rate of change in a graph, crucial for interpreting velocity and acceleration.
  • Function

    A mathematical relationship assigning each input exactly one output, often used to model position, velocity, or acceleration.