Here's a breakdown:
* Speed: How fast an object is moving. It is measured in units like meters per second (m/s) or kilometers per hour (km/h).
* Direction: The path or line along which the object is moving. This could be north, south, east, west, or any combination of these.
Examples:
* A car traveling at 60 km/h to the east has a velocity of 60 km/h east.
* A ball thrown straight up has a velocity that changes with time. At first, it has an upward velocity, then its velocity decreases until it reaches zero at the top of its trajectory, and then it has a downward velocity.
Key points:
* Constant velocity: An object has constant velocity if its speed and direction remain the same.
* Changing velocity: An object's velocity changes if its speed, direction, or both change.
* Acceleration: Acceleration is the rate of change of velocity. It means the object is speeding up, slowing down, or changing direction.
