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change in position


how far object has moved


distance and direction from a starting point


distance an object travels in a given time


change over time



speed formula

doesn't change

constant speed


changing speed

speed of motion when speed is changing

average speed

speed at a certain time

instantaneous speed

speed and direction of an object's motion


motion of Earth's crust

very very very slow

change in velocity


speed is increasing

positive acceleration

speed is decreasing

negative acceleration

change in velocity/time

acceleration formula

final velocity - initial velocity

change in velocity

meters per second

unit for acceleration

push or pull on an object


combination of two or more forces

net force

equal in size, opposite in direction

balanced forces

resistance to any change in motion


greater inertia

greater mass


Newton's First Law

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