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kg measures mass
m/s2 measures acceleration
n measures force
m measures distance
m/s measures speed or velocity
s measures time
gravity force of attraction between 2 objects
friction force betwwen two objects rubbing against each other
sliding friction least amount of friction between solid objects
inertia things want to keep doing what they are already doing
first law inertia
second law acceleration depends on an objects mass and the force on it
thrid law for every object has an equal an oppsite force
reference point an object that doesn't move that you can use to see if you are moving
control variables the things you keep constant in an experiment
indentpent variables the thing you change or test
dependent variables the result or what you measure
basic metric units m,l,g
Created by: djhero