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Forces and Motion

QuestionAnswer
Speed distance an object travels in a certain amount of time; the equation is ____ = distance / time
force a push or a pull; the equation is ________ = mass x acceleration
inertia the resistance of an object to changes to its motion, an object at rest remains at rest or an object at motion remains in motion
velocity speed in a given direction
mass the amount of matter an object has; all objects with _______ will also have inertia
motion the state in which one object's distance from another is changing
acceleration the rate at which velocity changes in a given direction
vector a measurable quantity that has both a magnitude (size) and a direction; Examples of _______ include force, velocity, acceleration but NOT speed
reference point a place or an object used for comparison to determine if an object is in motion
average speed the overall rate at which an object moves; calculated by dividing the total distance an object travels by the total time
net force the overall force on an object calculated when all the individual forces acting on it are added together
friction a force that exists at the boundary between any two pieces of matter that are in contact with each other; ______ opposes the motion of an object
gravity the force that pulls objects towards each other
deceleration stopping or slowing motion
center of mass the point where the distribution of an object's mass is centered
compression an elastic force that squeezes or pushes matter together
tension an elastic force that pulls or stretches matter
Created by: sallyhanh
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