Here's why:

* True: You can observe an object's motion by looking at it. You can see if it's moving, how fast it's moving, and in what direction.

* False: Measuring motion requires more than just observation. You need tools and techniques to quantify the motion. For example, you might use:

* A stopwatch to measure time

* A ruler to measure distance

* Sensors to track position and speed

So, while you can qualitatively describe an object's motion by observing it, you need quantitative measurements to truly measure it.