How do you know an object is moving?

Answer 1

An object is in motion when it changes its position with respect to a given frame of reference (usually it is the observer or a fixed point in space). Motion can only be visualized when it is seen against a frame of reference. but as we move on to advanced physics, we see that there is no point we can consider as stationary.

Einstein solved this porblem while proposing his theory of relativity. he said everything floats in 'luminiferous ehter'. this is supposed to be fixed, and not move. so, we can take it as a frame of reference, when considering problems involving no physical object at rest. Imagine the ether to be any point in space, but make all observations from the same point.

Answer 2

Because of its velocity (velocity is the rate of change of position), an object will move. An object is stationary if it has no velocity because it will not be able to move without velocity. Therefore, you can tell that an object has moved because of velocity.

Answer 3

Movement can only be defined in terms of something else. If you imagine a universe with only one object in it, the concept of movement is meaningless. If you add a second object, then movement can be defined by establishing one as a non-moving frame of reference. It doesn't matter which one. They can both be moving only if you add a third frame of reference. So motion is always relative to a designated rest frame.

You cannot sense constant velocity. If you are in a closed capsule moving through space, with no nearby external visual references, you will have no sense of motion. Only a change in motion, the onset of acceleration, gives you a sense of movement.

Answer 4

if you are on it you don't. if you are on something else you don't, however you can know if the two things are moving relative to each other.

This is an important aspect of Special Relativity.

Answer 5

because its not in that place no more dummy

Answer 6

when it isn't in the sam place as before