# How Is Motion Measured?

Motion is measured by the relativity of the subject to the reference point. Basically the physics behind it is that forces will act on a subject and will make the object move.
How Is Motion Measured?
Motion is a simple concept to understand, but can become a surprisingly complicated thing to calculate, depending on the level of detail needed. At a basic level, motion is the measurement of movement in a direction. Determining movement and direction... More »
Difficulty: Easy
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Q&A Related to "How Is Motion Measured"
 The rate of motion of an object is usually measured in units of velocity, such as miles or kilometers per hour or in meters per second squared. This is done by calculating the specific http://answers.ask.com/Science/Other/how_is_motion...
 1. Reference the medically established standard range of motion. Since the range of motion is the measurement of a joint going through a normal range of movements, there is a great http://www.ehow.com/how_5030407_measure-range-moti...
 A mass in motion has kinetic energy and momentum. Of course it is all relative, since the mass could be stationary in one frame and moving in another. Kinetic energy = 1.2 mv^2. Momentum http://wiki.answers.com/Q/What_is_the_measure_of_m...
 In measuring motion, the parameters are the most important thing. Time, http://www.chacha.com/question/what-is-important-i...
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To measure range of motion, one can use a goniometer. This is a specialized protractor made and intended to measure angles of joints or extremities in motion. ...
1. Reference the medically established standard range of motion. Since the range of motion is the measurement of a joint going through a normal range of movements ...
1. Position the arm, elbow, and hand for supination testing. The subject's elbow must be touching the side of his body and the forearm is out at a 90-degree angle ...