Speed
* Definition: Speed is the rate at which an object moves. It tells you how fast something is going.
* Measurement: Speed is measured in units like meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph).
* Scalar Quantity: Speed is a scalar quantity, meaning it only has magnitude (size).
* Example: A car traveling at 60 mph has a speed of 60 mph, regardless of direction.
Velocity
* Definition: Velocity is the rate at which an object changes its position. It tells you both how fast something is going *and* in what direction.
* Measurement: Velocity is also measured in units like meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph).
* Vector Quantity: Velocity is a vector quantity, meaning it has both magnitude and direction.
* Example: A car traveling at 60 mph east has a velocity of 60 mph east.
Key Differences
* Direction: Velocity includes direction, while speed does not.
* Change: Velocity can change even if speed remains constant. For example, a car traveling in a circle at a constant speed has a changing velocity because its direction is constantly changing.
In simpler terms:
Think of speed as how fast you are going on a treadmill, while velocity is how fast you are going on a treadmill while also specifying the direction you are running (left or right).
