EXAM1CHEATSHEET

# EXAM1CHEATSHEET - Measurement 10 tera 109 giga 106 mega 103...

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Measurement 10 12   tera-  T 10 9   giga-  G 10 6   mega-  M 10 3   kilo-  k 10 2  hecto- h 10 1   deka-  da 10 -1  deci-  d 10 -2  centi- c 10 -3  milli-  m 10 -6  micro- µ 10 -9  nano-  n 10 -12   pico-  p 1,230,000   1.23 x 10 6 0.00000123   1.23 x 10 -6 2 /360 π o Density: mass/volume   = m/v ρ Vectors Vectors – magnitude and  direction Scalars – magnitude ONLY Magnitude is the distance  between the original and  final position.  Direction can be – or +  a x  = a cos  θ a y  = a sin  θ a 2  =  a x 2  + a y 2 tan  θ  = a y /a x Scalar product i.e. dot  product  ·  b = |a||b| cos    θ Vector product i.e. cross  product  |a x b| = |a||b| sin  θ Kinematics Displacement If + to the right and up If – to the left and down Velocity (m/s) Average velocity is the  slope of an x vs t graph v avg  = (Δx)/(Δt) Average speed  s avg  = (total distance)/(Δt)

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## This note was uploaded on 11/15/2010 for the course PHYSICS 1322 taught by Professor Michaelgorman during the Spring '10 term at University of Houston.

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EXAM1CHEATSHEET - Measurement 10 tera 109 giga 106 mega 103...

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