Earth's surface is a common reference point for detecting motion.
The reference point should be stationary, or not moving.
If we're in the realm of newtonian physics I would say that it couldn't be in motion relative to a reference point, of course quantum physics and seems to prove everything we believe wrong.
A landmark - or reference point.
This is called a reference point.
A change in an objects position relative to a reference point is called motion.
Earth's surface is a common reference point for determining position and motion.
reference point
A common frame of reference when describing motion is the observer's point of view or a fixed point in the environment that is used as a reference to describe the motion of an object. This helps to establish direction, speed, and location of the object in relation to the observer or the fixed reference point.
There are various ways to determine motion. The common way is having a reference point and the change from that position is what will determine the motion.
Introduction of motion
A Reference Point A reference point is needed to determine if an object is in motion.
A Reference Point A reference point is needed to determine if an object is in motion.
The object is in motion relative to the reference point.
Both motion reference point and displacement are related to the position of an object. The motion reference point is the stationary point from which the motion of an object is described, while displacement is the change in position of an object relative to its initial position. Both concepts help to describe the motion of an object in a specific frame of reference.
Motion does not depend on a reference point itself, as an object's motion is determined by its position and velocity irrespective of any external frame of reference. However, the description of motion can vary based on the reference point chosen to measure it. Different observers may perceive the same motion differently based on their reference frames.
The most common frame of reference for measuring motion is the Earth or an observer on the Earth. Motion is often described in relation to fixed landmarks or objects on Earth's surface. This allows for a consistent point of reference to determine the speed, direction, and acceleration of an object.
Introduction of motion