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






2. Energy due to position






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






4. 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






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






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






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






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






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






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






11. Rectilinear translation and Curvilinear translation






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






13. 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.






14. Energy due to motion






15. 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






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






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






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






19. The capacity to do work






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






21. Speeding up in a positive direction






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






24. Rate of motion of an object






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






26. Rate of motion in a specific direction






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






28. The muscle elongates is an example of negative work






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






30. Energy due to deformation






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






32. Accelerate our bodies






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






34. Speed and velocity






35. The rate of doing work






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






37. Mechanics of objects in accelerated motion.






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






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






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






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






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






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






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






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






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






47. 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.






48. Location in space in relation to a fix point






49. Displacement/time






50. Distance traveled/time