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






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. Rectilinear translation and Curvilinear translation






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






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






6. Accelerate our bodies






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






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






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






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






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






12. 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






13. Linear motion






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






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






16. Displacement/time






17. 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.






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






19. 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.






20. 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.






21. Location in space in relation to a fix point






22. The muscle elongates is an example of negative work






23. Mechanics of objects in accelerated motion.






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






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






26. The rate of doing work






27. Linear motion






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






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






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






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






32. Rate of motion of an object






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






34. Energy due to position






35. The capacity to do work






36. Speeding up in a positive direction






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






38. 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






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






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






41. 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.






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






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






44. Rate of motion in a specific direction






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






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






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






48. Speed and velocity






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






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