This describes the average speed. If there is a direction specified that the distance has moved, then it will be a vector, and called average velocity.
All objects move.
Speed
The movement of objects from place to place is governed by the principles of physics, specifically Newton's laws of motion. Objects move when a force is applied to them, causing acceleration. The distance an object moves is also affected by factors such as friction, air resistance, and gravity.
they move by gravity or many other things.
Some examples of objects that move by rhythm are pendulum clocks, metronomes, and vibrating tuning forks. These objects utilize a regular, repetitive motion to keep time or maintain a specific frequency.
The gravitational force between two objects increases as they move closer together because the force of gravity is inversely proportional to the square of the distance between the objects. As the distance between the objects decreases, the gravitational force becomes stronger.
The image will also move 2m towards the mirror, southward, as it moves with the same distance as the object but in the opposite direction.
The ratio of distance moved to the time taken to move that distance is the speed of the object. Speed is a measure of how quickly an object changes its position. Mathematically, speed = distance/time.
Parallax is the apparent relative motion of objects when an observer moves. That is, when your head (or your telescope) move back and forth you see different objects move different amounts. More distant objects move less than closer objects. You can use this to calculate the distance of an object. Specifically, if an object appears to move by one arc-second (1/3600 of a degree) over 6 months (i.e. as the Earth has moved 2 AU), then it is 1 parsec away - a bit over 3 light-years.
Multiple tools exist to help move heavy objects. The most common is a hand truck or dolly, which is upright with two wheels that allows heavier objects to move with less force.
The electric force between charged objects decreases as the objects move away from each other. This decrease in force is described by the inverse square law, which states that the force is inversely proportional to the square of the distance between the objects. Thus, the force weakens rapidly as the distance between the objects increases.
The gravitational force between two objects decreases as they move farther apart. This decrease is described by the inverse square law, which states that the force is inversely proportional to the square of the distance between the objects. So, as the distance between the objects increases, the gravitational force weakens.