Final answer:
The statement regarding movement concepts and skill themes is true, as movement concepts are necessary for understanding and applying skill themes. In physics, the statements regarding constant acceleration and friction are also true, explaining the behavior of objects in motion and the differences between static and kinetic friction.
Step-by-step explanation:
The statement, "Movement concepts can be taught without including skill themes, but skill themes cannot be taught without focusing on movement concepts," is True. This is because movement concepts are the foundational ideas related to how the body moves, such as direction, speed, and force. Without understanding these concepts, teaching skill themes, which are more about applying movement in specific activities (e.g., throwing a baseball), would not be effective. For example, teaching a child how to change direction swiftly relates to a movement concept, while teaching how to hit a baseball requires the child to use that concept to learn the skill theme of swinging the bat.
Looking at physics-related examples: Constant acceleration comes under kinematics, a part of physics, that studies motion. The statement, 'For an object moving with constant acceleration, the plot of displacement versus time is a curved line, while the plot of displacement versus time squared is a straight line,' is True. This indicates the relationship between acceleration, time, and displacement. In another example related to physics, the statement, 'Kinetic friction is less than the limiting static friction because fewer points of contact exist once an object is moving,' is also True. It highlights a fundamental principle of friction where it usually takes more force to initiate movement than to maintain it, due to static friction being higher than kinetic friction.