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Unit 4 objectives
vocab words
8
Science
8th Grade
12/06/2011

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Term
percent error
Definition
|data1-data2| a formula that shows how persice your data
data2 is in your equation, you want a low %
Term
percent differnace
Definition
comparing 2 calculated or expiremental values to each other
Term
newtons 1st law
Definition
*object at rest will stay at rest
*object accelerating will stay accelerating at a constant speed
*this happens until disturbed by an unbalanced force
Term
newtons 2nd law
Definition
*amont of force needed to make an object change its acceleration
*depends on the mass
Term
newtons 3rd law
Definition
for every action force, there is an equal and opposite reaction force
Term
vector diagrams
Definition
shows the direction and magnitude of an object
Term
elastic collisions
Definition
when two objects are crashed into each other with no deformation
Term
Inertia
Definition
the tendency of an object to continue what it is already doing
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