How do you recognize motion?

Answer 1

Deciding if an object is moving isn't as easy as it sounds. We can only discern relative motion and we have to use reference points. (A reference point is an object that is not moving that you compare to the other object.) An object is in motion when it's distance from the reference point is changing.

For example, you could say that you and this computer are not moving. Other than your eyes blinking, chest pumping up and down, and you clicking on the mouse, you and this computer are not in motion. Since the distance between you and the computer is not changing, you can conclude that neither you or the computer are moving.

Answer 2

Motion can be recognized through sensors like accelerometers or gyroscopes that detect changes in orientation or movement. Other methods include using computer vision to track movement in video streams or analyzing data from GPS devices to determine speed and direction of travel. Additionally, simple motion detectors can be triggered by changes in infrared radiation or sound waves.