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






2. Rate of motion in a specific direction






3. 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.






4. The capacity to do work






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






6. 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.






7. Linear motion






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






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






10. 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






11. Location in space in relation to a fix point






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






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






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






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






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






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






18. The muscle elongates is an example of negative work






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






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






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






22. Energy due to motion






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






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






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






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






27. Energy due to position






28. Rectilinear translation and Curvilinear translation






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






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






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






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






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






34. Rate of motion of an object






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






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






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






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






39. Distance traveled/time






40. 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.






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






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






43. 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






44. Speeding up in a positive direction






45. Accelerate our bodies






46. The study of forces and their effects on living systems.






47. 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.






48. Mechanics of objects in accelerated motion.






49. Speed and velocity






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