the answer is motion
An angle.
Displacement
Motion is a change in the position of an object in relation to a reference point.
A change in an objects position relative to a reference point is called motion.
Movement Occurs When an Object moves Relative to a Stationary Object
The change in position of an object compared to a reference point(another object) is called motion.
A landmark - or reference point.
its speed
motion occurs when an object changes its position relative to a reference point.
DisplacementMotion
Its position changes relative to a frame of reference.
motion
motion
An object is in motion if it changes position relative to a reference point. Motion is a relative quantity and is expressed in respect to the position of another object. Example: both a car and the Earth are moving (earth is revolving around the sun) but if we express the motion of the car in respect to the Earth, we say the car is moving relative to the Earth. At the same time the earth is moving relative to the sun.
Its position, relative to the point of reference.
A change in an objects position relative to a reference point is called motion.
motion
motion
the object is moving relative to that point.
Something that is in motion changes position, the position of the object is described relative to another object. If you chose the tree as a reference point, then the object in the pictures has been in motion because it has changed postions relative to the tree.