Relative Motion Vocabulary

A change in position over a time interval compared to a fixed reference point

• Distance
• motion

• displacement

• Velocity

The overall change in position from a starting point.

Example: Moving 4 feet forward and 1 foot back is 3 feet from the starting point.

• Distance
• motion

• displacement

• Velocity

The TOTAL change in position during a trip.

Example: Moving 4 feet forward and 1 foot back is a total of 5 feet

• Distance
• motion

• displacement

• Velocity

An object's speed in a particular direction

• speed

• Velocity
• Acceleration
• Displacement

The amount of distance changed by an object in a certain amount of time

• speed

• Velocity
• Acceleration
• Displacement

A change in an objects speed or direction (change in velocity)

• speed

• Velocity
• Acceleration
• Displacement

The motion of an object when it is ONLY experiencing the force of weight (gravity)

• Displacement

• constant velocity

• terminal velocity

• Free fall

Tags

NGSS.MS-PS2-4

The viewpoint from with an object's motion is perceived

• point of view
• perspective of motion
• frame of reference
• motion analysis