Newton's Laws of Motion Vocab Flashcards
change in an object’s position over time
motion
an object that appears to stay in place
reference point
a measure of the distance an object moves in a given amount of time
speed
the quantity that describes the speed of the object and its direction of travel
velocity
the rate at which velocity changes
acceleration
the tendency of objects to resist any change in motion
inertia
the resistance that one surface or object encounters when moving over another
friction
an object will remain at rest or move at a constant speed in a straight line unless it is acted on by an unbalanced force
the law of inertia
when force increases, the acceleration of an object with constant mass increases with the same multiplier as the force
directly proportional
force remains constant and the mass is decreased, the object will accelerate at a faster rate
inversely proportional
the force that attracts an object to the center of the earth
gravity