43 terms

Honors Physics: Chapter 3

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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
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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
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