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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. The capacity to do work






2. 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






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






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






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






6. Location in space in relation to a fix point






7. Energy due to motion






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






9. 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.






10. Rectilinear translation and Curvilinear translation






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






12. Speed and velocity






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






14. 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






15. 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.






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






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






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






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






20. The muscle elongates is an example of negative work






21. 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.






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






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






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






25. Mechanics of objects in accelerated motion.






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






27. Distance traveled/time






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






29. Accelerate our bodies






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






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






32. Linear motion






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






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






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






36. Energy due to position






37. Rate of motion in a specific direction






38. The rate of doing work






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






40. Linear motion






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






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






43. Displacement/time






44. Speeding up in a positive direction






45. 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






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






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






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







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