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  • dimension

    The manifoldness with which the fundamental units of time, length, and mass are involved in determining the units of other physical quantities.

    displacement

    an objects change in position

    vector

    has a magnitude and a direction

    scalar

    has a magnitude, but no direction

    average velocity

    dx/dt

    coordinate system

    a system where an x and y value can locate a point

    meter/second

    SI unit for velocity

    meter

    SI unit for length

    velocity

    a vector quantity with both magnitude and direction

    speed

    a scalar quantity with only magnitude

    instantaneous velocity

    the limit of the average velocity as the time interval (dt) approaches zero

    average acceleration

    dv/dt, m/s^2

    meter/second^2

    SI unit for acceleration

    deceleration

    negative acceleration; a decrease in velocity

    instantaneous acceleration

    the limit of the average acceleration as the time interval (dt) approaches zero

    acceleration due to gravity

    denoted by g; the magnitude of free-fall acceleration, which increases as altitude decreases

    motion

    the movement of an object

    frame of reference

    a choice of coordinate axes that defines the starting point for measuring any quantity

    resultant

    a statement that solves a problem or explains how to solve the problem

    geometric vector addition

    ...

    triangular vector addition

    ...

    tip to tail vector addition

    ...

    parallelogram vector addition

    ...

    vector negation

    ...

    components

    something determined in relation to something that includes it

    distance

    the property created by the space between two objects or points

    vector algebra

    ...

    projectile motion

    ...

    two dimensional motion

    ...

    one dimension motion

    ...

    parabola

    a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve

    projection angle

    ...

    trajectory

    the path followed by an object moving through space

    relative velocity

    velocity of an object with respect to a particular frame of reference

    commutative law of addition

    ...

    stationary frame of reference

    ...

    moving frame of reference

    ...

    tangent

    ...

    vector equality

    ...

    arithmetic/algebraic operations

    ...

    cosine

    ...

    meter/second

    SI unit for velocity

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