* Speed is a scalar quantity, meaning it only has magnitude (size). It tells you how fast an object is moving. For example, a car traveling at 60 miles per hour has a speed of 60 mph.
* Velocity is a vector quantity, meaning it has both magnitude (speed) and direction. It tells you how fast an object is moving and in what direction. For example, a car traveling at 60 miles per hour eastward has a velocity of 60 mph east.
What are the same for all objects?
The concept of speed and velocity is the same for all objects. Whether it's a car, a bird, or a planet, they all have speed and velocity.
What is different for all objects?
The values of speed and velocity are different for different objects. A car traveling on a highway will have a much higher speed than a snail crawling on a leaf.
Important Note: Velocity is constantly changing if an object's speed or direction changes. A car turning a corner has changing velocity even if its speed is constant.
