Which term describes the distance an object travels per unit of time in any direction?

• A. Displacement
• B. Speed
• C. Gravity
• D. Projectile Motion

Answer: (B)

Speed describes how fast something is moving, measured as distance traveled per unit time. It is a scalar quantity, meaning it has magnitude but no direction, which fits the idea of distance per time in any direction. If you needed to include direction, that would be velocity. Displacement refers to the straight-line distance from start to finish with a direction, not the total distance traveled per time. Gravity is a force, not a rate of motion, and projectile motion describes the curved path an object follows under gravity. So the term that matches distance per unit time without regard to direction is speed.