Motion
Force Two Types A push or pull Balanced-Objects don’t move Unbalanced-Objects move
motion The action of an object as it moves from one place to another
Position The place where something is arranged in relationship to other things
friction The resistance between two objects that touch or rub against each other
gravity The force that pulls everything towards the Earth’s center
Reference Point An object to which another object is compared
Spring scale Meter Stick A tool that measures force The tool used to measure distance
direction speed The path an object follows The rate at which something moves