Velocity is the speed of an object in a specific direction, such as 20 meters per second north.

Acceleration is the rate at which an object changes its velocity, which can involve increasing speed.

The position of an object is its location in space.

Speed is how fast an object is moving, while velocity includes both speed and direction.

Distance is the length between starting and ending points, measured in units like meters.

Motion is the change in position of an object over time.

A frame of reference is a system for specifying the precise location of objects in space and time.

Speed = Distance / Time.

Deceleration is the reduction of speed or the rate at which an object slows down.

Common units for speed include meters per second (m/s) and kilometers per hour (km/h).