Forces & Motion Vocabulary
force A Push or pull exerted on an object to change the motion of the object. Can result in acceleration, speed, or direction.
Sum of ALL the forces acting on an object Net force Sum of ALL the forces acting on an object
Balanced force 2 forces going in opposite directions equal in size - NO CHANGE/MOTION - have a net force of 0 N.
Force that cause a change in motion Unbalanced force Force that cause a change in motion
Force that is used on an object Applied force Force that is used on an object
Newton’s Laws of Motion Describe the motion of objects and how they interact. (1) Every object moves in a straight line unless acted upon by a force. (2) The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object's mass. (3) For every action, there is an equal and opposite reaction.
Action or process of being moved motion Action or process of being moved
Reference Point A point/object used to determine if motion has occurred.
Friction A force that opposes motion; defined as the action of one surface or object rubbing against another.
How quickly something increases in speed acceleration How quickly something increases in speed