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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. 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






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






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






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






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






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






7. Rate of motion of an object






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






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






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






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






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






13. 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.






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






15. 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






16. 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.






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






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






19. Speeding up in a positive direction






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






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






22. Displacement/time






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






24. The muscle elongates is an example of negative work






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






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






27. Linear motion






28. Energy due to position






29. 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.






30. Location in space in relation to a fix point






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






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






33. 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






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






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






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






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






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






39. Accelerate our bodies






40. Energy due to deformation






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






42. Rectilinear translation and Curvilinear translation






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






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






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






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






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






48. Linear motion






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






50. Rate of motion in a specific direction