Here's a breakdown:
* Speed: How fast an object is moving, measured in units like meters per second (m/s) or kilometers per hour (km/h). It's a scalar quantity, meaning it only has magnitude.
* Direction: The path an object is moving along. It's a vector quantity, meaning it has both magnitude and direction.
* Velocity: Combines both speed and direction. It's also a vector quantity.
* Average velocity: Calculated by dividing the total displacement (the overall change in position) by the total time taken. It represents the average rate of change of an object's position.
Example:
Imagine a car traveling 50 km/h eastward for 2 hours, then 40 km/h westward for 1 hour.
* Total displacement: 50 km east - 40 km west = 10 km east
* Total time: 2 hours + 1 hour = 3 hours
* Average velocity: 10 km east / 3 hours = 3.33 km/h eastward
Therefore, the average velocity of the car is 3.33 km/h eastward.