Physics
Physics
Problem
1. a Explain the difference between *distance* and *displacement*. 2. b Explain the difference between *speed* and *velocity*.Intuitive explanation
PART A
Distance and displacement both measure how far something has moved, but distance counts every bit of path you actually travel, while displacement only cares about your straight-line separation from start to finish. Think of it this way: if you walk around a circular track and return to your starting point, your distance is the full lap, but your displacement is zero.
PART B
Speed and velocity sound similar because they both describe how fast something is moving, but speed only tells you the rate (like "60 mph"), while velocity includes direction (like "60 mph north"). This distinction matters because velocity is a vector—direction is built in—whereas speed is just a scalar number. That's why two objects moving at the same speed can have very different velocities.
Intuitive explanation
PART A
Distance and displacement both measure how far something has moved, but distance counts every bit of path you actually travel, while displacement only cares about your straight-line separation from start to finish. Think of it this way: if you walk around a circular track and return to your starting point, your distance is the full lap, but your displacement is zero.
PART B
Speed and velocity sound similar because they both describe how fast something is moving, but speed only tells you the rate (like "60 mph"), while velocity includes direction (like "60 mph north"). This distinction matters because velocity is a vector—direction is built in—whereas speed is just a scalar number. That's why two objects moving at the same speed can have very different velocities.