# Shared Flashcard Set

## Details

Basic Physics Info.
conversions, equations, units, trigonometry, definitions
48
Physics
07/07/2012

Term
 dimensionally consistent
Definition
 each term in the equation must have the same dimensions   length [L] mass [M] time [T]
Term
 volume dimension
Definition
 [L3]
Term
 distance dimension
Definition
 [L]
Term
 energy dimension
Definition
 [M][L2]⁄[T2]
Term
 acceleration dimension
Definition
 [L]⁄[T2]
Term
 area dimension
Definition
 [L2]
Term
 velocity dimension
Definition
 [L]⁄[T]
Term
 Velocity is a ________ unit.
Definition
 compound   [L]⁄[T]   velocity measured in miles per hour has the same dimensions — length/time — as one measured in inches per century
Term
 soh
Definition
 Finding a Component sineθ=opposite⁄hypotenuse   Finding an Angle θ=sine-1(o⁄h)
Term
 cah
Definition
 Finding a Component cosineθ=adjacent⁄hypotenuse   Finding an Angle θ=cosine-1(a⁄h)
Term
 toa
Definition
 Finding a component tangentθ=opposite⁄adjacent   Finding an angle θ=tangent-1(o⁄a)
Term
 micro
Definition
 abbreviation: µ   one millionth   10-6=.000001
Term
 SI units
Definition
 length: meter mass: kilogram time: second
Term
 British engineering system units
Definition
 length: foot mass: slug time: second
Term
 CGS unit system
Definition
 length: centimeter mass: gram time: second
Term
 kilo
Definition
 abbreviation: k   one thousand   103=1,000
Term
 centi
Definition
 abbreviation: c   one hundredth   10-2=0.01
Term
 milli
Definition
 abbreviation: m   one thousandth   10-3=0.001
Term
 Giga
Definition
 abbreviation: G   one billion   109=1,000,000,000
Term
 Mega
Definition
 abbreviation: M   one million   106=1,000,000
Term
 scalar quantity
Definition
 a quantity that is specified by a numerical value only
Term
 vector quantity
Definition
 a quantity that is specified by using both a numerical value and a direction
Term
 Pythagorean theorem solves for the ___________.   What is the equation?
Definition
 hypotenuse, resultant, radius, or magnitude on a right triangle   A2 + B2=C2   C=√A2 + √B2
Term
 aav=
Definition
 Δv⁄Δt   vf − vi⁄tf − ti
Term
 vav=
Definition
 Δx⁄Δt   xf − xi⁄tf − ti   or   1⁄2(v0 + v)
Term
 1h=_____s?
Definition
 3,600
Term
 1mi=______ft?
Definition
 5,280
Term
 1y=___ft?
Definition
 3
Term
 1m=_____ft?
Definition
 3.281
Term
 constant-acceleration equation of motion   position, time, velocity, acceleration
Definition
 x=x0 + v0t + 1⁄2at2
Term
 constant-acceleration equation of motion   velocity, acceleration, time
Definition
 v=v0 + at
Term
 constant-acceleration equation of motion   velocity, acceleration, position
Definition
 v2 = v02 + 2a(x - x0)
Term
 constant-acceleration equation of motion   position, time, velocity
Definition
 x = x0 + 1⁄2(v0 + v)t
Term
 constant-acceleration equation of motion   velocity
Definition
 vav = 1⁄2(v0 + v)
Term
 components of a right triangle
Definition
 x = rcosθ   y = rsinθ   r = √x2 + √y2
Term
 force of friction   Ff =
Definition
 (µ)FN
Term
 work   W =
Definition
 Fdcosθ
Term
 Hooke's Law   F =
Definition
 -kx   k = spring constant
Term
 sum of forces   ∑F =
Definition
 ma
Term
 centripetal force   Fc =
Definition
 (m)(v2⁄r)
Term
 potential energy   PE =
Definition
 mgh
Term
 potential energy of a spring   PEspring =
Definition
 1⁄2kx2   k = spring constant x = amount of compression
Term
 kinetic energy   KE =
Definition
 1⁄2mv2
Term
 Newton's first law   (law of inertia)
Definition
 An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.
Term
 Newton's second law
Definition
 The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Term
 Newton's third law
Definition
 For every action, there is an equal and opposite reaction.
Term
 1joule =
Definition
 1J = 1N·m = 1(kg·m⁄s2)·m = 1kg·m2⁄s2
Term
 centripetal acceleration   ac =
Definition
 v2⁄r
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