Motion

Definition: The state in which one object’s distance from another is changing

Example 1: (from book) You and book are actually in motion because you are on earth which is orbiting the sun

Visual Representation

Pg. 17

Reference point

Definition: A place or object used for comparison to determine if something is in motion

Example 1: (from book) moving train and using nearby building as a reference point to tell if you are moving

Visual Representation

Pg. 18

Speed

Definition: The distance the object traveled per unit of time. S=distance/time

Example 1: 90 km/h

Visual Representation

Pg. 20

velocity

Definition: speed in a given direction

Example 1: (from book) velocity of aircraft vs. velocity of storm systems

Visual Representation

Pg. 23