Speed vs. Velocity
* Speed: How fast an object is moving. It's a scalar quantity, meaning it only has magnitude (e.g., 60 miles per hour).
* Velocity: How fast an object is moving and in what direction. It's a vector quantity, meaning it has both magnitude and direction (e.g., 60 miles per hour north).
Example
Imagine a car driving around a circular track at a constant speed of 50 miles per hour.
* Speed: The car's speed is constant at 50 mph.
* Velocity: Even though the speed is constant, the car's velocity is constantly changing! This is because the direction of the car's motion is constantly changing as it goes around the circle.
Key takeaway: A car can have constant speed but changing velocity if its direction of motion is changing.
