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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. Energy due to motion






2. Mechanics of objects in accelerated motion.






3. 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






4. The rate of doing work






5. 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.






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






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






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






9. The muscle elongates is an example of negative work






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






11. Energy due to position






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






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






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






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






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






17. 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






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






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






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






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






22. Speeding up in a positive direction






23. Rectilinear translation and Curvilinear translation






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






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






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






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






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






29. Rate of motion of an object






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






31. Distance traveled/time






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






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






34. Rate of motion in a specific direction






35. Linear motion






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






37. 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.






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






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






40. 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






41. Accelerate our bodies






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






43. Speed and velocity






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






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






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






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






48. Displacement/time






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






50. Linear motion