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science review
review for scirnce test
26
Science
8th Grade
12/14/2008

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Term
balanced forces
Definition
forces that equal to out no movement or a constant speed
Term
unbalanced forces
Definition
creates movement and motion a change in speed
Term
net force
Definition
the amount of force left after you subtract the to forces
Term
newton
Definition
measure of force
Term
spring scale
Definition
object used to measure force
Term
velocity
Definition
speed in one direction
Term
acceleration
Definition
a change in direction or speed
Term
inertia
Definition
the tendency a object has to resist change
Term
kinetic energy
Definition
energy of motion
Term
potintial energy
Definition
energy with the potential to change
Term
sound
Definition
energy of sound
Term
chemical
Definition
energy that crates a new object
Term
mechanical
Definition
the kinetic and potential energy in a object
Term
radiant energy
Definition
the energy of electromsgnetic waves
Term
thermal energy
Definition
energy of heat
Term
electrical energy
Definition
the energy of all electric objects
Term
electomagnetic
Definition
disturbance that repeates itself over a wave length
Term
transverse
Definition
waves found in a pond
Term
longitudinal waves
Definition
slinky like wave
Term
amplitude
Definition
distance from wave to line
Term
frequency
Definition
number of occurences per a unit of time
Term
crest
Definition
the ttop of a wave
Term
trough
Definition
the bottom of a wave when the wave is pointing doown
Term
wavelength
Definition
length between waves
Term
reflection
Definition
when light bounces of a object and spreads itselfvon anoher object
Term
refraction
Definition
when light bends
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