WILL MARK BRAINLIEST
3.The branch of physics involving actions and forces is called:

Sports fitness

mechanics

personal fitness

nutrition


4.There is no real art to sitting

true

false


5. An increase in speed or velocity can be described as _____.

motion

movement

speed

acceleration


6. A healthy posture means the spine is "_______" and resting in a comfortable, natural position, not too rounded or arched

Neutral*

curved

very straight

bent


7.People spend about ____ of their lives in bed, which makes it important to think about sleeping positions.

80 percent

half

one- third*

one-fourth


9.______ allows you to fully appreciate and better understand your body's needs.

Exercising

cutting sugar from your diet

running

mindfulness


10._____ made some unbelievable progress in understanding the human body and ultimately changed the way the body was understood.

Albert einstein

Issac newton*

Leonardo da vinci

Charles darwin


11. A case of some biomechanical research that greatly affected the technique and performances in the sport of swimming occurred in the early 1970s, when a researcher discovered the importance of hand motions while in the stroke.

true

false


12. The study of systems in accelerated motion is called___.

Posture

dynamics

cardiovascular fitness

nutrition


13.The study of anatomy is primarily concerned with how organisms(like humans) are structured.


true

false


14.The difficulty you feel in maintaining proper posture has nothing to do with your level of fitness or strength.

True

False