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






2. Displacement/time






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






4. Mechanics of objects in accelerated motion.






5. Rectilinear translation and Curvilinear translation






6. 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






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






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






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






10. Speed and velocity






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






12. Location in space in relation to a fix point






13. 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.






14. The rate of doing work






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






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






17. Energy due to position






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






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






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






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






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






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






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






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






26. The capacity to do work






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






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






29. Linear motion






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






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






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






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






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






35. Speeding up in a positive direction






36. Distance traveled/time






37. Rate of motion in a specific direction






38. 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.






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






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






41. Energy due to motion






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






43. 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






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






45. 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






46. 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.






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






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






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






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