The term for speed with direction is what?

The term for speed with direction is what?

• A. Speed
• B. Acceleration
• C. Inertia
• D. Velocity

Answer: (D)

Velocity is the term for speed with direction. It tells you not only how fast something is moving, but also which way it’s going, so it’s a vector with both magnitude and direction. Speed alone is just how fast, with no direction. Acceleration is about how quickly that motion is changing over time (speed up, slow down, or turn). Inertia is the tendency of an object to resist changes in its motion. For example, a car moving north at 60 mph has velocity 60 mph north; if it then turns east while keeping 60 mph, its velocity changes to 60 mph east, even though the speed is the same.

Velocity is the term for speed with direction. It tells you not only how fast something is moving, but also which way it’s going, so it’s a vector with both magnitude and direction. Speed alone is just how fast, with no direction. Acceleration is about how quickly that motion is changing over time (speed up, slow down, or turn). Inertia is the tendency of an object to resist changes in its motion. For example, a car moving north at 60 mph has velocity 60 mph north; if it then turns east while keeping 60 mph, its velocity changes to 60 mph east, even though the speed is the same.