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Mechanical Principles Of Human Movement

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. SI units are the most commonly accepted units of measure based on the metric system.






2. Defined as the absolute value of the ratio of the velocity of separation of velocity of approach






3. Used to describe a change in position - the SI unit is meters - may also see miles - yards - feet and inches.






4. The product of force and the amount of displacement in the direction of that force






5. Measure of inertia; the quantity of matter in an object. Does not change with location.






6. The action or process of change in position - in which two things are necessary.






7. Are forces that act on an object as a result of interaction with the environment surrounding it. Either non - contact or contact forces.






8. The shortening phase of the muscle in an isotonic lift is an example of positive work






9. A measure of the length of a path followed by an object






10. Duration of an event - SI unit if seconds - minutes - hours and days all based on s.






11. The muscle elongates is an example of negative work






12. The objects stay together and move with the same velocity after impact (full back and linebacker)






13. Is a mathematical representation of anything that is defined by its size or magnitude (a number) and its direction (its orientation).






14. The capacity to do work






15. Done by a force acting on an object when the object is displaced in the direction opposite the force acting on it






16. Rectilinear translation and Curvilinear translation






17. Linear motion






18. Rate of motion in a specific direction






19. Accelerate our bodies






20. The branch of dynamics concerned with the forces that cause or tend to cause motion (external forces - Newton's laws).






21. In reference to height - the greater the height the more gravitational potential energy






22. A change in position that results from a combination of both linear and angular motion. Most movement is general is nature






23. Done by a force acting on an object if the object is displaced in the same direction as the force






24. The product of forece multiplied by the time that force acts






25. Forces that act within the object or system whose motion is being investigated.






26. The branch of dynamics concerned with the forces that cause or tend to cause motion






27. Are forces that occur between objects in contact with each other i.e. air and water.






28. Occurs when an object moves in a positive direction but is slowing down






29. The science concerned with the effects of forces acting on objects.






30. Energy due to motion






31. The change of motion of an object is proportional to the force impressed; and is made in the direction of the straight line in which the force is impressed






32. Mechanics of objects in accelerated motion.






33. Act parallel to the contacts and opposes motion or sliding between the surfaces i.e. the backward of the runners foot strike gives the runner horizontal motion.






34. The means by which energy is transferred from one object or system to another






35. The distance traveled in a straight line from the starting point to the ending point






36. Linear motion






37. The branch of dynamics concerned with the description of motion (linear - angular and general motion).






38. Force that occur even if the objects are not touching i.e. gravity or magnetic.






39. Act perpendicular to the surface in contact and move the objects in opposite ways i.e. the downward force from a runners foot strike moves runner up away from the earth.






40. Linear motion that occurs when an object maintains its orientation during a movement so that all points on the object move the same distance - in the same direction - in the same time but not in straight lines.






41. Energy due to position






42. To every action there is always opposed an equal reaction






43. Displacement/time






44. The rate of doing work






45. Change in position that occurs when all points on a body or object move in circular paths about the same fixed axis - also referred to as rotary motion or rotation.






46. Measure of the force of gravity acting on an object. Changes with location.






47. Distance traveled/time






48. All of the momentum of one object is transferred to the other (two pennies example)






49. Speeding up in a positive direction






50. Everybody continues in a state of rest or of uniform motion in a straight line - unless it is compelled to change that state by forces impressed upon it