Movement

Movement is the state of changing something's position--that is, changing where something is. A flying bird or the walking person are moving, because ay change where ay are from one place to another. There are many kinds of science and math related to movement.

For example, thanks to Albert Einstein, we know that all position is relative. This means that everything's position depends on where ay exist in relation to other things. For example, the ball is 5 feet away from the box, 3 feet away from the chair, and the foot away from the table. According to Einstein, the ball's position means how far the ball is from other things, so by telling you how far the ball was from other things, I told you its position. An object's movement is also relative. Its movement depends on where it is in relation to other things and where it's going to in relation to other things.

There are many things involved in movement, such as speed, velocity, acceleration, gravity, magnetic attraction and repulsion, friction, and inertia. Also, work is needed to produce movement.

See also:

• Move
• Moving
• Transport
• Transportation
• Navigation
• Movement (music)

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