frame of reference
motion or momentum Motion for A+
"Motion" or "Momentum"
"Motion" or "Momentum"
Stationary object refers to an object that is not moving
There is no such thing as a "stationary" object. Every motion is always measured relative to something else, which, coincidentally, is what the question is all about. The thing against which motion is measured is called the "reference frame".
A description of the motion of the object. Stationary vs moving described by velocity.
When its position changes with respect to a point of reference.
A stationary object will not move unless a force is applied to it.
Movement Occurs When an Object moves Relative to a Stationary Object
Motion is always relative to something. There's no such thing as really "stationary."Stationary only means that the motion of the observed object matches the observer's motion. Example: Reading the book that lies 'stationary' in your lap while you're in a car or on a passenger jet.
In a constant state of motion (which may actually be stationary).
A body is said to in motion when its position continuesly changes with respect to a stationary object taken as reference point.