Question

What is the measured value always positive from one point to another

Answer 1

Distance traveled is the measured value that is always positive between two points in Physics, as it is a scalar quantity representing the total path length without regard to direction. Standard deviation in Statistics is also always positive or zero, describing the spread of data around the mean.

Step-by-step explanation:

The measured value that is always positive from one point to another in Physics is the distance traveled. Distance is the magnitude of displacement between two positions and does not take into account the direction of travel. This means that distance is a scalar quantity and is always positive, as it represents the total path length moved regardless of the path taken. Additionally, the standard deviation in Statistics is also always positive or zero, as it is a measure of the spread of a set of data points.

When dealing with motion and defining the coordinate system in Physics, it is common to assign a positive direction, typically away from the origin or to the right on the x-axis, to keep track of the motion and its associated vectors, such as velocity and acceleration. In such cases, positive and negative values have meaning in terms of the direction of the quantities. However, when it comes to distance, it simply accumulates without regard to direction, which is why it remains always positive.

Answer 2

It is called "distance". In fact, distance measures how far apart two points are from each other, and it is always a positive number.
In mathematics, for instance, the distance between two points of coordinates (x1,y1) and (x2,y2) on a xy-plane is defined as

`d= √((x_1-x_2)^2 + (y_1-y_2)^2)`
and by definition, this number is always positive.