Here's a breakdown:
Speed:
* Definition: How fast an object is moving.
* Measurement: Measured in units like meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph).
* Focus: Only on the magnitude (amount) of motion.
* Example: A car traveling at 60 mph.
Velocity:
* Definition: How fast an object is moving *and* in what direction.
* Measurement: Measured in units like meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph), but *always* includes a direction.
* Focus: On both the magnitude and direction of motion.
* Example: A car traveling at 60 mph *north*.
Key Differences:
* Direction: Velocity includes direction, while speed doesn't.
* Constant vs. Changing: An object can have constant speed but changing velocity (e.g., a car going in a circle at a constant speed).
In Summary:
Think of speed as a scalar quantity (just a number) and velocity as a vector quantity (a number with direction).
Let me know if you have any more questions or want further clarification!
