the starting point you choose to describe the location, or position, of an object

• motion

• position

• reference point

• displacement

an object’s distance and direction from a reference point

• motion

• position

• reference point

• displacement

the process of changing position

• motion

• position

• reference point

• displacement

the difference between the initial, or starting, position, and the final position

• motion

• position

• reference point

• displacement

a measure of the distance of an object travels in a given amount of time

• vector

• velocity

• speed

The speed and the direction of a moving object

• vector

• velocity

• speed

a quantity that has both magnitude and direction

• vector

• velocity

• speed

a measure of the change in velocity during a period of time

• friction

• free-body diagram

• acceleration

contact force that resists the sliding motion of two surfaces that are touching

• friction

• free-body diagram

• acceleration

a simple model to understand what will happen to an object due to a force

• friction

• free-body diagram

• acceleration