Physical science

The starting point you use to describe the motion or the position of an object

• Reference point

• Position

• Motion

• Displacement

An object’s distance and direction from a reference point

• Position

• Reference point

• Speed

• Motion

The process of changing position

• Motion

• Speed

• Constant speed

• Position

The difference between the initial, or starting, position and the final position of an object that has moved

• Displacement

• Position

• Speed

• Velocity

The distance an object moves divided by the time it takes to move that distance

• Speed

• Constant speed

• Instantaneous speed

• Average speed

The rate of change of position in which the same distance is traveled each second

• Constant speed

• Instantaneous speed

• Average speed

• Speed

An object’s speed at a specific instant in time

• Instantaneous speed

• Constant speed

• Average speed

• Speed

The total distance traveled divided by the total time taken that distance

• Constant speed

• Average speed

• Velocity

• Acceleration

The speed and the direction of a moving object

• Velocity

• Acceleration

• Motion

• Average speed

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

• Velocity

• Acceleration

• Motion

• Speed