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






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






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






4. Mechanics of objects in accelerated motion.






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






6. SI units are the most commonly accepted units of measure based on the metric system.






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






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






9. Linear motion






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






11. The rate of doing work






12. The capacity to do work






13. Accelerate our bodies






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






15. Rectilinear translation and Curvilinear translation






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






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






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






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






20. Linear motion that occurs when a 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 - in strain lines






21. The property of an object to resist changes in its motion.






22. The muscle elongates is an example of negative work






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






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






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






26. Location in space in relation to a fix point






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






28. Mechanics of objects at rest of moving at a constant velocity.






29. Displacement/time






30. Distance traveled/time






31. When an object speeds up - slows down - starts - stops or changes direction. Can be positive or negative






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






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






34. Linear motion






35. 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.






36. Rate of motion in a specific direction






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






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






39. 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.






40. 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






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






42. Speed and velocity






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






44. Speeding up in a positive direction






45. 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.






46. 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.






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






48. Rate of motion of an object






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






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