"reference"
reference point
Reference point
A motionless place or object used for comparison is called a datum. It could also be called a reference point.
In theory, you can never truly detect if an object is in motion. Although I may travel in my car on the highway, I am not wrong to say that instead of myself moving across the earth, the earth is moving under me! Relativity proves to us that it is impossible to accurately show if an object is in motion or not. From a mathematical perspective, an object that you assume to be moving must be set relative to another object. This is in order to make accurate calculations about the object in question.
Any motion where the object moves from place to place, e.g. someone riding a bike.
reference point
That would be a reference point.
A reference point
reference point
Reference point
Reference point
A landmark - or reference point.
wow...8th grade science online test question?
This is called a reference point.
A motionless place or object used for comparison is called a datum. It could also be called a reference point.
Any motion where the object moves from place to place, e.g. someone riding a bike.
when it change in position or in place