motion
in 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.
motion
This is called relative motion. Relative to your frame of reference, the object's motion appears unchanged, even though it's motion has actually changed.
In the question, "an object's change in position...over...time" is a perfectly reasonable definition of velocity.
a reference point i just had that test a while ago!
motion occurs when an object changes its position relative to a reference point.
DisplacementMotion
Its position changes relative to a frame of reference.
motion
the answer is motionAn angle.DisplacementMotion is a change in the position of an object in relation to a reference point.
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.