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Forces & Motion

Chapter 1 Forces & Motion Vocabulary

Position an object's location
Motion a change in the position of an object
Speed the rate at which, or how fast, an object changes its position
Constant Speed speed that is steady, or stays the same
Variable Speed speed that changes
Force a push or a pull
Friction a contact force that opposes the motion of an object; can cause a moving object to slow down or to stop
Balanced Forces forces that work together and make no change in motion
Unbalanced Forces forces that cause an object at rest to move; can change the speed or direction of a moving object
Magnetism a noncontact force that pulls on, or attracts, metal objects containing iron
Created by: mbwilliams