Final answer:
The true statements about objects in motion are that we can determine if an object is in motion by comparing it to other objects around it and that forces can cause objects to move or change direction. It is false that objects in motion cannot change direction or that an object in motion will always move in one direction.
Step-by-step explanation:
When examining true statements about objects in motion, it is important to understand the principles of kinetic energy and forces. An object in motion possesses kinetic energy, which is the energy it has due to its motion. Forces, such as pushes and pulls, can indeed cause objects to change direction or to move. Hence, one way to determine if an object is in motion is by comparing it to the objects around it, and it is true that some forces can cause objects to move.
However, the statement 'An object moving in one direction can never begin moving in another direction' is false because forces can make objects in motion change directions. Additionally, an object that is not changing its position is considered not in motion.