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# 8th Science Vocab

TermDefinition
SPEED The rate at which an object moves
AVERAGE SPEED speed = Distance/Time
VELOCITY tells the rate an object moves AND in which direction it moves **Think of the air traffic controller
ACCELERATION change in velocity (speed and direction) of an object
FORCE In science the push or pull between an object
MASS the amount of matter making up an object
INDEPENDENT VARIABLE what you change in your experiment OR it's the variable that your testing
DEPENDENT VARIABLE it changes the independent variable It's what we measure: the information you put in the data table *doesn't depend on anything else (stands alone)
INERTIA (1) the tendency of ALL objects to RESIST a change in motion (2) the MORE mass an object has the MORE INERTIA it has
NEWTON'S FIRST LAW effect of balanced and unbalanced forces on an object at rest and on an object in motion
NEWTON'S SECOND LAW THe amount of force needed to accelerate an object. It depends upon the mass of the object
MASS V.S. WEIGHT mass: does not change with location weight: it DOES change with location. A measure of the force of gravity
Created by: aprice21