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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 science concerned with the effects of forces acting on objects.






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






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






4. Energy due to position






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






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






7. Mechanics of objects in accelerated motion.






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






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






10. 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.






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






12. Speed and velocity






13. Rectilinear translation and Curvilinear translation






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






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






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






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






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






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






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






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






22. Speeding up in a positive direction






23. Linear motion






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






25. 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.






26. 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






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






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






29. 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.






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






31. 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






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






33. 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.






34. Energy due to motion






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






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






37. The capacity to do work






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






39. The rate of doing work






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






41. Location in space in relation to a fix point






42. Distance traveled/time






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






44. Linear motion






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






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






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






48. Rate of motion of an object






49. Rate of motion in a specific direction






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