43 terms

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

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triangular vector addition

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tip to tail vector addition

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parallelogram vector addition

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vector negation

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components

something determined in relation to something that includes it

distance

the property created by the space between two objects or points

vector algebra

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projectile motion

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two dimensional motion

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one dimension motion

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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

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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

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stationary frame of reference

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moving frame of reference

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tangent

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vector equality

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arithmetic/algebraic operations

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sine

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cosine

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meter/second

SI unit for velocity