Any external force that acts against movement is called __________.
Which of the following BEST describes a body in equilibrium?
How are balance and stability different concepts?
Any external force that acts against movement is called __________.
Grady has been playing soccer for years. He is considered an expert in many aspects of the game, including kicking, passing, and dribbling. How could Grady have achieved the status of expert?
Explain the difference between mass and weight for objects on Earth and on the Moon.
Mass is the amount of matter in an object and remains the same on Earth and on the Moon. Weight is the force of gravity on the object, so an object weighs about one-sixth as much on the Moon as it does on Earth.
Earth's gravity acts upon objects with a steady force of __________.
How are balance and stability different concepts?
Balance is the ability to maintain equilibrium by neutralizing the forces that disturb it. Stability, meanwhile, is the ability to maintain balance while participating in actions that are likely to upset balance. Standing on one leg for several minutes demonstrates good balance, while playing in a vigorous soccer game without tripping or falling demonstrates good stability.
The carpal bones in the wrist are an example of __________.
To overcome an object's inertia, it must be acted upon by __________.
Why are men typically less stable on their feet than women?
Explain why a seesaw is closest in arrangement to a first class lever.
How many types of joints are there in the human body?
Which of the following statements about joints is TRUE?
Explain the difference between a joint's possible range of motion and its actual range of motion.
Describe what would happen if, while wearing rollerskates, you pushed as hard as you could against a wall. Why does this happen?
If, while wearing rollerskates, a person pushed against a wall as hard as he or she could, the force of the push would be opposed by the force of the wall pushing back against the pusher. Because the wall is solid and grounded, and the pusher is wearing roller skates, the pusher would end up rolling in the direction opposite to the force of the push.
Which of the following BEST describes a body in equilibrium?
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