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






2. 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






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






4. Linear motion






5. Rectilinear translation and Curvilinear translation






6. Energy due to position






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






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






9. A push or a pull. They cause objects to start - stop - speed up - slow down or change direction. (N)






10. Distance traveled/time






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






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






13. Energy due to deformation






14. 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.






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






16. 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






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






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






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






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






21. The muscle elongates is an example of negative work






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






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






24. Energy due to motion






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






26. Location in space in relation to a fix point






27. 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.






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






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






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






31. The rate of doing work






32. Displacement/time






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






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






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






36. Rate of motion of an object






37. Speeding up in a positive direction






38. 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.






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






40. Mechanics of objects in accelerated motion.






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






42. Linear motion






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






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






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






46. Accelerate our bodies






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. Rate of motion in a specific direction






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






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