Final answer:
Physics principles are used to distinguish between total distance traveled and displacement. Distance is the entire path length covered, while displacement is the shortest path between two points with direction. Correct measurement tools should be selected based on what is being measured, such as using a scale for the weight of a violin.
Step-by-step explanation:
The student's question refers to scales and measurements, which align with the principles of Physics. In physics, particularly when studying motion, it is important to understand the different ways to measure distance and displacement. Total distance traveled is a scalar quantity representing the total length of the path taken by an object during its motion, regardless of direction. On the other hand, displacement is a vector quantity that represents the shortest distance from the initial to the final position of the object, along with the direction of that line.
One would use total distance traveled to understand the complete trajectory of motion, beneficial in contexts like tracking the distance a jogger runs. Displacement is useful when the objective is to find out how far out of position an object has ended up, such as determining the straight-line distance between two points.
When measuring small objects, such as a violin's weight or the volume of oregano, appropriate tools must be selected. A scale or balance is ideal for measuring the weight of a violin, while for a small volume of oregano, a measuring spoon or cup may be more appropriate. The choice of tool and the method of measurement should always be reasonable and by the nature of the object and the precision required.