Vocabulary

Force and Motion Vocabulary

Force - a push or a pull

balanced forces - forces that cancel each other out when acting together on a single object

unbalanced forces - forces that do not cancel each other out when acting together on a single object

speed - how fast an object’s position is changing with time at any moment

friction - a force that opposes the motion of one object moving past another

momentum - Combination of mass and speed

inertia - the tendency for an object to resist a change in its state in motion (an object at rest will stay at rest)

gravity - a force of attraction between 2 objects due to their mass

acceleration - changes in velocity with respect to time

position - location of an object

velocity - the speed and direction of a moving object